King Louie - 165 R6
Stats
Armor - 55364
Reality - 92816
Well KL has good amount of reality & armor already ( armor on lower side )
I would say all Four Mods to Skill Power Mods with Purple Skill Upgrade, no need of thinking much in his case.
If you still think of an armor upgrade as it is on the lower side, go with one HP Mod with armor piece & the rest 3 purple skill mod.
I would still suggest the 4 Purple skill mod as it will deal an insane amount of damage at the start of battle & it works really well with animal disc maxed. One banana will deal around 5664902 damage if all 4 mods are maxed +40. Source : wakkatu
Mod Matrix