The goal is to make a light armored feat stacking sustained DPS survivor who can primary tank spellcasters, be DPS only on rest of mobs and kill them quickly, with the added utility of trapsmithing and UMD. The skills extra SP gets dumped into are search and balance.
Is this a viable build?
I don't want to get into much detail outside of tradeoffs for taking pally/fighter/rogue levels in it higher or lower.
I took pally 7 for the immunities, smite and CHA saving throw boost (Divine Grace) (I also need CHA for UMD anyway so it's decent synergy). 7 is the sweet spot for my goals.
fighter 11 for feat stacking, and weapon/strength enhancements (can get 3x str)
rogue 2 for the initial skillpoint boost, UMD, trap engineering, evasion, sneak attack damage and +1 dex enhancement.
Feats planned are mobility, dodge, spring attack, slicing blow, slashing spec, khopesh and entire TWF line which does fit into this build's feat slots.