I got the Poonbilt brackets from Echobit. They are ok, but I think it would be worth the extra price to get one of the others. The main thing that made me mad was the wait. The cuts were at a slight angle and I think thats probably what made the calipers go crooked. It wasnt a big deal to grind them a little, but I was already in a pissy mood at the time.
I finally got everything in the truck and I love it. The pedal is firm, but it has more travel than what I would like and the rears lock up easy. I think an adj. prop. valve will cure that. It stops great.
Here's a list of what I used:
Brackets..$70
Cadillac calipers..$156 for both from Advance, including core charge
Bolts for brackets..$7, 1/2" fine thread, 1 3/4" long(?)
Brake hoses..about $12/ea., for a 76 Chevette
Banjo bolts..couldnt find any in town so I made my own from 7/16"-1"fine thread bolts, they are larger than the ones on pu calipers
Brake rotors..$25/ea from Autozone
Brake pads..standard chevy brake pads, D52
Caliper guide pins
Wheel studs..stock rear studs work fine
I still need to get the parts to hook up the parking brake and plan to add a prop. valve. I was also able to fit 15 in. wheels with a little grinding on the calipers. If you want part numbers let me know and I'll see what I can dig up.