Adam, the "kit" from rustyhope has the brackets, spacers, bolts, directions, and a list of parts with numbers required to convert to disc brakes. Then you pick up the parts (rotors, bearings, hoses, seals & calipers) at your favorite local parts house. The worst part of the hole deal is when you have to drill & tap 2 holes per side to 5/8 fine thread. I think you can send him your spindles and he will drill & tap for a fee.

I also installed a rack & pinoin steering on my 39 Plymouth. I used a rack from a Chevy Calivere. Worked out pretty slick. Gene