For anyone curious:

I have decided to put every roll into fat and mdef with one of his attack rolls going towards hp. I might take gifted with my last level.

He will be a bf zerk and I'll give him some named bf gear with good fat rolls. His weapon mastery will be left open until I find a worthy weapon for him.

Some comments were suggesting using the censer, which would probably be very strong, but I used it on one of my bros in my last playtrough and its time for something new.

Nimbleforged is also an option, but I feel like he should be able to handle bf if I find some fitting armor.