Quick question for you all.... I had a trans built by tim king and he was suppose to install z-pak clutches in 3rd and there stock clutches so I found a set of z-pak clutches that are barely used like brand new but me or the seller that is a friend of mine has no idea what there worth. Any ideas as to what he should charge me/ j should pay him for them? There already being installed in my trans we just need to figure out a price lol.