I purchased the following items from Scott Fuller for the restoration of my '67 GTA Convertible back in 2013:
Part # EX-MU3 1967 2-inch Transverse Muffler (date coded August 1966)
Part # EX-MC5 1967-1973 Mustang 2-inch tailpipe band clamp (2 required)
Part # EX-MC6 1967/68/69 Mustang Tailpipe/Tip Horseshoe Clamp (2 required)
Part # EX-RB1 1967-69 Resonator/Intermediate Pipe Bracket-to-Hanger Bolts (4 required)
I even told Scott when I ordered the parts that unfortunately my budget wouldn't allow me to purchase a full 390 dual exhaust system from him (it would have been about $2,900), and that I would probably need to integrate his parts with those from NPD. Scott was very understanding of my financial situation, and even offered tips on putting it all together - great guy!
As Jeff said, Scott sells really high-quality stuff, and it's definitely the way to go for a concours restoration. However, if you're looking for something to use on a driver car (something that will be driven on wet roads), then there are less expensive alternatives...
I would have no hesitations about buying parts from Scott again, and I hope purchase the rest of the 390 dual exhaust kit from him someday soon!