Why don't you stop taking away items and perhaps add new ones in?
This game needs more variety in armor sets. If you want the village AI to not buy strange armor in strat then balance the price or stats on the strange armor a tad so that it buys studded leather or something.
Removing it is rather tasteless, and this thread is full of people who are anti eastern armor for god knows what reason.
I guess its okay to do this now takeda and shogunate are gone right?