Thanks for the advice here. I have since been reading a few actively fitted Legions and learned that with 1 Damage Control, 2 EANMs, 1 Thermal Hardener, and 1 repairer module, the Legion can achieve ~80% armor resistance and been liking that.
Even the BCS can be replaced by a Reactive Armor Hardener (uses cap) and achieve impressive results.
Anyway my few Legions have been making a fortune for me, and I hope PVP-fitting these casual Legions is not too paranoid.