Using mustang rotors for 4.5" bc

I agree with you about the cost of 4 piston KH brakes. I have a set I am restoring to first rate capacity,stainless pistons etc. I also have those 4.5" pattern brakes from an M body and spindles,and also there is my 10" manual drum spindles .I have 3 ways to go,and am not sure I would want to change the originality of my 4 piston KH,and affect their resale value,so I may sell them and go with one of the other 2 options,whichever is the most cost effective.