You can code if-checks for items to check wearing a la knight gear, but it's limited in the benefits it provides. For instance, using an item can grant armor, using it while wearing another piece can grant armor + terra shield. What you can't do is adjust hit/dam, perm affects, savings and so forth. Coded variables for olc would allow for this.
EQ Sets
If you guys want to know an easy way to create eq sets just send me a PM or grab me in game for an OOC chat,
minimal coding would be needed as well.
UC
It's not terribly hard. Nor is it as easy as everyone seems to think it is. If anyone knows OLC, think keys and doors - you need to, via OLC specify what's part of the set then somehow figure out a way to let the builder specify what happens when all pieces are together.
I think going the 'keys and doors' route is a pain in the backside, I wouldnt even entertain the thought.
Ill PM you Morlhach.
UC