Just picked up a couple of GM quarter panels,I know its alot of money but I will definitely do it again on next car I build after this one.Big difference in fit and gaps without much work,if I was a good welder like alot of fabricators on this site I would have reworked what I had,but unfornutely I am not a great welder and dont have a tig welder.Making progress still waiting for roof skin but got quarters and tail panel on and primed with very little work on gaps,really happy so far.