I want to put readily available factory,from any manufacture,disc brake calipers and rotors on my 63 pv544.I plan to press the front brake drums out of the hubs.They have a 5x4.5" lug pattern.I can machine the hub diameter or thickness as needed.A friends son does cad design and runs cnc machines will make the caliper brackets.I know about the 122s disc brake setup but they need modifications to make them work.I want to be able to get brake pads anywhere.