I have kept all the parts.
I'll have to take another look at the condition of the parts, if I remember right, the calipers should be rebuilt, the rotors are thin, the parking brake shoes should be relined, the parking brake hardware should be replaced, and the soft lines should be replaced. All the other parts seem to be ready to install, booster, master, prop valve, caliber mounting brackets, parking brake cables, and pads.
I can get some pictures in a couple of weeks, I'm currently at college so away from the garage.
I believe that they still make rear calipers and pads. If I'm remembering right they're the same as the fronts on the Plymouth Volare.
I'm not completely decided on the price, I had it listed for $100 without the master/booster/prop valve. With that stuff maybe $250 plus shipping.