alot of times it's a crap shoot. For my 67 I got my shelby style hood from K.A.R in Columbus,Ohio. It's not too bad but still needs lots of work and a bit flimsy. My shelby trunk lid from CJ Pony(paid $400),needs sooo much work. End caps from NPD are horrible. Got a chin spoiler(fiberglass) from Branda and it wasn't too bad. On the other hand I bought a 4 inch cowl hood from Cervini for my 85 GT,it practically fell into place on it's own with just the normal prep work. Too bad they don't do classic mustangs,they're stuff is top notch,seen other pieces on other cars,and very minimal work needed.