I have previously beat the Enhanced Edition Trilogy with these mods (Weidu logs in attachments) with a party including 3 arcane casters.
I am now attempting to do so without
any mages or an Inquisitor.
The only other modifications that I have made are making the Amulet of Power usable by monks, improving the Cloak of Non-Detection, and making Ir'revrykal usable by evil fighters. The difficulty is Tactical, with maximum HP/level
Valkorion, the main Character (Monk with Monk Overhaul)
Katauri, Rebalanced Wizard Slayer
Vanator, Rebalanced Shapeshifter
Khasishi Twice-turn, Bounty Hunter