Posting the final write-up of this build.
Level split has changed. Level sequence has changed to maximise skill points (sequence now probably better suited to stoning than levelling but it makes little difference). I picked max disable over max UMD, players choice 
Dropped all ranged ability to pick up 5% extra dodge. Worth it? Probably if I only ever melee.
Build will be running in Dreadnaught. 100% off-hand strikes. Stunned targets (which should be most things you stomp on) should be getting 50% helpless damage + 30% No Mercy damage bonus + 50% Combat Brute damage.
Doublestrike is handled by 20% killer (temp bonus, easy to keep up), 3% artifact black dragon set bonus and 6% approx. for any random item.
5x critical multiplier. 9d6 sneak attack damage. 5 AP's spare in the below configuration for stat balancing / more sneak attack / whatever.
Should be moderately effective, have fun!
Code:
Character Plan by DDO Character Planner Version 04.19.02
DDO Character Planner Home Page
Ripyouasaurus
Level 20 Lawful Neutral Dwarf Male
(12 Monk \ 5 Rogue \ 3 Ranger)
Hit Points: 370
Spell Points: 0
BAB: 15\15\20\25\25
Fortitude: 19
Reflex: 20
Will: 17
Starting Feat/Enhancement
Abilities Base Stats Modified Stats
(36 Point) (Level 1) (Level 20)
Strength 16 23
Dexterity 15 21
Constitution 17 24
Intelligence 8 13
Wisdom 16 25
Charisma 6 11
Tomes Used
+1 Tome of Strength used at level 3
+1 Tome of Dexterity used at level 3
+1 Tome of Constitution used at level 3
+1 Tome of Intelligence used at level 3
+1 Tome of Wisdom used at level 3
+1 Tome of Charisma used at level 3
+2 Tome of Strength used at level 7
+2 Tome of Dexterity used at level 7
+2 Tome of Constitution used at level 7
+2 Tome of Intelligence used at level 7
+2 Tome of Wisdom used at level 7
+2 Tome of Charisma used at level 7
+3 Tome of Strength used at level 11
+3 Tome of Dexterity used at level 11
+3 Tome of Constitution used at level 11
+3 Tome of Intelligence used at level 11
+3 Tome of Wisdom used at level 11
+3 Tome of Charisma used at level 11
+4 Tome of Strength used at level 15
+4 Tome of Dexterity used at level 15
+4 Tome of Constitution used at level 15
+4 Tome of Intelligence used at level 15
+4 Tome of Wisdom used at level 15
+4 Tome of Charisma used at level 15
+5 Tome of Strength used at level 19
+5 Tome of Dexterity used at level 19
+5 Tome of Constitution used at level 19
+5 Tome of Intelligence used at level 19
+5 Tome of Wisdom used at level 19
+5 Tome of Charisma used at level 19
Starting Feat/Enhancement
Base Skills Modified Skills
Skills (Level 1) (Level 20)
Balance 6 17
Bluff -2 0
Concentration 3 30
Diplomacy -2 0
Disable Device 3 24
Haggle -2 0
Heal 3 7
Hide 6 20
Intimidate -2 0
Jump 6 14
Listen 3 7
Move Silently 6 20
Open Lock 6 9
Perform n/a n/a
Repair -1 1
Search -1 26
Spellcraft -1 1
Spot 3 7
Swim n/a n/a
Tumble 3 10
Use Magic Device 2 15
Level 1 (Rogue)
Skill: Balance (+4)
Skill: Disable Device (+4)
Skill: Hide (+4)
Skill: Jump (+3)
Skill: Move Silently (+4)
Skill: Open Lock (+4)
Skill: Tumble (+1)
Skill: Use Magic Device (+4)
Feat: (Past Life) Past Life: Barbarian
Feat: (Past Life) Past Life: Fighter
Feat: (Past Life) Past Life: Fighter
Feat: (Past Life) Past Life: Fighter
Feat: (Past Life) Past Life: Monk
Feat: (Past Life) Past Life: Monk
Feat: (Past Life) Past Life: Paladin
Feat: (Past Life) Past Life: Paladin
Feat: (Past Life) Past Life: Paladin
Feat: (Past Life) Past Life: Ranger
Feat: (Past Life) Past Life: Rogue
Feat: (Past Life) Past Life: Rogue
Feat: (Selected) Power Attack
Level 2 (Ranger)
Skill: Search (+5)
Feat: (Favored Enemy) Favored Enemy: Undead
Level 3 (Monk)
Skill: Concentration (+3)
Feat: (Selected) Past Life: Disciple of the Fist
Feat: (Monk Bonus) Stunning Fist
Level 4 (Monk)
Ability Raise: STR
Skill: Concentration (+3)
Feat: (Monk Bonus) Dodge
Level 5 (Monk)
Skill: Concentration (+2)
Skill: Hide (+1)
Feat: (Monk Path) Path of Harmonious Balance: Fists of Light
Level 6 (Monk)
Skill: Concentration (+1)
Skill: Hide (+1)
Skill: Move Silently (+1)
Feat: (Selected) Cleave
Level 7 (Monk)
Skill: Concentration (+1)
Skill: Move Silently (+2)
Level 8 (Ranger)
Ability Raise: STR
Skill: Search (+6)
Level 9 (Monk)
Skill: Concentration (+2)
Skill: Hide (+1)
Skill: Move Silently (+1)
Feat: (Selected) Improved Two Weapon Fighting
Feat: (Monk Bonus) Mobility
Level 10 (Monk)
Skill: Concentration (+1)
Skill: Hide (+2)
Skill: Move Silently (+1)
Level 11 (Monk)
Skill: Concentration (+1)
Skill: Hide (+1)
Skill: Move Silently (+2)
Level 12 (Monk)
Ability Raise: WIS
Skill: Concentration (+1)
Skill: Hide (+2)
Skill: Move Silently (+1)
Feat: (Selected) Improved Critical: Bludgeoning Weapons
Level 13 (Monk)
Skill: Concentration (+1)
Skill: Hide (+2)
Skill: Move Silently (+1)
Level 14 (Ranger)
Skill: Search (+6)
Level 15 (Monk)
Skill: Concentration (+2)
Skill: Move Silently (+2)
Feat: (Selected) Greater Two Weapon Fighting
Level 16 (Rogue)
Ability Raise: WIS
Skill: Use Magic Device (+9)
Level 17 (Rogue)
Skill: Disable Device (+6)
Skill: Search (+3)
Level 18 (Monk)
Skill: Concentration (+3)
Skill: Hide (+1)
Skill: Jump (+1)
Feat: (Selected) Great Cleave
Level 19 (Rogue)
Skill: Disable Device (+7)
Skill: Search (+2)
Level 20 (Rogue)
Ability Raise: WIS
Skill: Disable Device (+6)
Skill: Search (+1)
Skill: Use Magic Device (+2)
Enhancement: Dwarf - Dwarven Toughness (Rank 1)
Enhancement: Dwarf - Dwarven Constitution (Rank 1)
Enhancement: Dwarf - Dwarven Toughness (Rank 1)
Enhancement: Dwarf - Dwarven Constitution (Rank 1)
Enhancement: Dwarf - Dwarven Tactics (Rank 1)
Enhancement: Dwarf - Dwarven Tactics (Rank 2)
Enhancement: Dwarf - Dwarven Tactics (Rank 3)
Enhancement: Assassin (Rog) - Knife in the Darkness (Rank 1)
Enhancement: Assassin (Rog) - Dagger in the Back (Rank 1)
Enhancement: Assassin (Rog) - Heartseeker Poison (Rank 1)
Enhancement: Assassin (Rog) - Sneak Attack Training (Rank 1)
Enhancement: Assassin (Rog) - Venomed Blades (Rank 1)
Enhancement: Assassin (Rog) - Venomed Blades (Rank 2)
Enhancement: Assassin (Rog) - Venomed Blades (Rank 3)
Enhancement: Assassin (Rog) - Sneak Attack Training (Rank 1)
Enhancement: Assassin (Rog) - Critical Accuracy (Rank 1)
Enhancement: Assassin (Rog) - Critical Accuracy (Rank 2)
Enhancement: Assassin (Rog) - Critical Accuracy (Rank 3)
Enhancement: Assassin (Rog) - Sneak Attack Training (Rank 1)
Enhancement: Assassin (Rog) - Dexterity (Rank 1)
Enhancement: Assassin (Rog) - Critical Damage (Rank 1)
Enhancement: Assassin (Rog) - Critical Damage (Rank 2)
Enhancement: Assassin (Rog) - Critical Damage (Rank 3)
Enhancement: Assassin (Rog) - Killer (Rank 1)
Enhancement: Assassin (Rog) - Killer (Rank 2)
Enhancement: Assassin (Rog) - Killer (Rank 3)
Enhancement: Shintao (Mnk) - Bastion of Purity (Rank 1)
Enhancement: Shintao (Mnk) - Deft Strikes (Rank 1)
Enhancement: Shintao (Mnk) - Deft Strikes (Rank 2)
Enhancement: Shintao (Mnk) - Deft Strikes (Rank 3)
Enhancement: Ninja Spy (Mnk) - Ninja Training (Rank 1)
Enhancement: Ninja Spy (Mnk) - Ninja Training (Rank 1)
Enhancement: Ninja Spy (Mnk) - Shadow Veil (Rank 1)
Enhancement: Ninja Spy (Mnk) - Sneak Attack Training (Rank 1)
Enhancement: Ninja Spy (Mnk) - Faster Sneaking (Rank 1)
Enhancement: Ninja Spy (Mnk) - Faster Sneaking (Rank 2)
Enhancement: Ninja Spy (Mnk) - Acrobatic (Rank 1)
Enhancement: Ninja Spy (Mnk) - Acrobatic (Rank 2)
Enhancement: Ninja Spy (Mnk) - Acrobatic (Rank 3)
Enhancement: Ninja Spy (Mnk) - Sneak Attack Training (Rank 1)
Enhancement: Ninja Spy (Mnk) - Fists of Iron (Rank 1)
Enhancement: Ninja Spy (Mnk) - Sneak Attack Training (Rank 1)
Enhancement: Ninja Spy (Mnk) - Wisdom (Rank 1)
Enhancement: Ninja Spy (Mnk) - No Mercy (Rank 1)
Enhancement: Ninja Spy (Mnk) - No Mercy (Rank 2)
Enhancement: Ninja Spy (Mnk) - No Mercy (Rank 3)
Enhancement: Tempest (Rgr) - Shield of Whirling Steel (Rank 1)
Enhancement: Tempest (Rgr) - Tempest (Rank 1)
Enhancement: Tempest (Rgr) - Improved Reaction (Rank 1)
Enhancement: Tempest (Rgr) - Improved Reaction (Rank 2)
Enhancement: Tempest (Rgr) - Improved Reaction (Rank 3)
Enhancement: Tempest (Rgr) - Acrobatic (Rank 1)