I purchased and installed the Right Stuff 4 wheel disk brake kit on my 71 Dart, but changed it up bit as I did not use the supplied brake proportioning valve. I used one of their OEM disc brake proportioning valves, minus the small add-on block. You may have trouble with the e-brake cables as the ones I got with the kit where even length. I had to purchase a separate long e-brake cable. The kit came with the small offset power brake booster and has worked very well, the car pulls down very quickly on emergency stops.
