If you run slider calipers toward the front of the car, you can use off-the-shelf '73-'76 A-body disc brake hoses.

If you end up with late model B-body pin calipers, run them toward the rear of the car and use a DOT stainless 15" flex hose with 7/16" banjo fitting. This set up works nicely on pre '70 B and A bodies equipped with stock front sway bar.