Early A vs 73 Duster, parts swap help

The disc brakes will bolt in,use the upper A arms,spindles and ball joints for the 73.The K frame of the 63-66 was used for both the V8 and slant.With the proper mounts the 340 will bolt in.The 727 will be tight but works,may have to hammer the floor in a few spots,also flatten the seam where the firewall meets the front floor. The 8 3/4 will bolt in,reuse the 65 springs if good but use the shock plates from the 73. Measure both drive shafts, the 73 may or may not be long enough.