Earl, I bought all my parts from Branda (
www.cobranda.com). I had checked around and they were supposed to be better than the parts available from Mustangs Unlimited and some of those other places. I was told there were two outfits making 69 Shelby fiberglass parts, and one was better than the other. In particular, the front fenders have minor steel reinforcing in the fiberglass that supposedly is not there on the other brand of fenders.
Fit was HORRIBLE. Every part required some massaging. Compared to the fiberglass parts I bought for my Galaxie from Crites, these pieces were really bad. Especially the trunk end caps and trunk; I had to work those pretty hard to make them look good. They came out OK in the end, though.
Having made those comments about the fit, the car I started with was far from pristine, since I had to put quarters and front floor pans on it. Also, the car had a minor hit in the driver's side windshield post. And, of course, I cut the entire front end off the car except for the frame rails, so I had to make custom mounts for the fender bolts. What I'm saying is that the pieces may have fit better on a nice starting car, rather than one that was rusty and had a bunch of replacement panels.