Concept/Goals: As above
Class: 12 Fighter / 7 Rogue / 1 Barbarian
Alignment: Neutral
Multiclass progression: 1st level as rogue (for skill points) then roughtly: BFFRFFFFRFFRFFFFRRR
Stats and Race (28pt build): Human
Str: 39 (16 base +3 fighter +1 human +5 levels +6 item +8 power surge)
Dex: 23 (15 base +2 tome +6 item)
Con: 20 (14 base +6 item)
Int: 14 (12 base +1 tome)
Wis: 14 (8 base +6 item)
Cha: 14 (8 base +6 item)
Tomes: You need a +2 dexterity tome (for ITWF) and a +1 intelligence tome (for combat expertise). Only way to do this build without them on 28 points is to reduce strength which is a bad idea. +2 int tome would really help skills (mainly to get points into move silently).
Ability increase every 4 levels: All in strength.
Skills: Disable Device (23), Search (23), UMD (23), Spot (23), Open Lock (10), Balance (9), Tumble (1), Jump (3), Move Silently (4), Hide (4), one other skill (4)
Feats (by level): Stunning Blow (1), Improved Sunder (1), Toughness (3), Two Weapon Fighting (6), Improved Critical: Slashing (9), Greater Two Weapon Fighting (12), Combat Expertise (15), Improved Trip (18)
Feats (fighter): Power Attack (1), Weapon Focus: Slashing (2), Weapon Specialisation: Slashing (4), Improved Two Weapon Fighting (6), Greater Weapon Focus: Slashing (8), Exotic Weapon Proficiency: Khopesh (10), Greater Weapon Specialisation: Slashing (12)
Would have liked to take Hamstring and Sap as extra tactical feats but can't fit them in that I can see. Not 100% on the feat order, could certainly try to get Improved Trip sooner (perhaps in favour of power attack and improved sunder).
Enhancements (Fighter): Haste Boost IV, Extra Action Boost I, Kensei II, Specified Weapon: Khopesh, Toughness II,
Enhancements (Rogue): Damage Boost III, Mechanic I, Sneak attack training III
Enhancements (Barbarian): Sprint Boost I
Enhancements (Human): Toughness II, Adaptability: Strength, Versatility III (or IV), Improved Recovery II
Mechanic I gives a good ranged option for when it's required and a helpful boost to traps skills. Sprint boost from Barbarian is always awesome. Not going to do a full enhancement count out unless it's really needed, easy enough to just try out different combinations to find out what works every 3 days.
Equipment:
Try to grab search/disable/spot/open lock as often as you can to keep up with the curve. Carry heroism and foxes potions at low levels to avoid blowing traps. Fight with a falchion or other two handed weapon until you get improved two weapon fighting at level 9. Fight with scimitar/kukri until you get khopesh proficiency and then still keep a kukri or other light weapon around for high AC enemies to put in the offhand. Grab +tactics DC weapons to put in the offhand to try different things out. If you hit level 20 and want help with epic gear come back to me then
Variants:
1 monk is possibly better than 1 barbarian for an extra feat.
Details:
Well I managed to squeeze everything that you wanted in here I think