go read my thread, I just did this on a 69 road runner last weekend. had original front drum brakes (manual)
I did research ALL companies. Cass from Dr. Diff hooked me up with his stage 1 kit, It is great!
The only mods I had to do is I wanted to front mount the calipers and I do not have a front sway bar, but i still had the sway bar mounts on the lower control arms. Air chisel knocked then off nice & clean.

great service and a great product! Stops better than expected.