Board Thread:General Discussion/@comment-667748-20130515090233/@comment-5123071-20130802063440

I got unupgradeable armor to work here, but it uses different parameter names than upgradeable ones, so it's not a very good solution.

That would work. What could also be done is make the base level stats taken from Armor, although this would cause max to not work for the unupgradeable armor.