Here might be a better STARTING point for sets https://github.com/LaukkaE/damage-calc-mmo/blob/master/src/js/data/sets/genmmo.js
I made those in march, most of the stuff is pretty basic, but atleast most of the OU stuff should have more proper sets than what classic BW2 sets would be.
All the LC stuff etc has been culled off, as i was going to do a separate tier for that stuff but didn't end up continuing as i haven't really played mmo this year.
Your free to use them if you want.