Have you bought your parts yet?
I used my FLAPS to source all my parts.
Calipers are 78/80 Chevy c10
rotors are 78/80 K10
master cylinder non power is a 1 inch corvette.
I made my caliper brackets out of 3/8 steel flat stock using a plywood pattern.
I fabbed my brake lines and used a 2lb proportioning valve.
Total cost was under $400.

Wayne
1938 1-Ton Farm Truck
Stovebolt Gallery Forums
1989 Silverado
1996 Mustang GT convertible
When I die, I hope she doesn't sell everything for what I told her I paid for it!