disc brakes on a duster

I know where there is a 73 small bolt pattern with the 73 up larger ball joint/ spindles with the single piston caliper that swing69 spoke of if anyone is interested. Not trying to hijack the thread. It will allow sbp wheels with the advantage of 73 and up single piston caliper and larger ball joints on a 65-72 car. If I hadnt already done my KH 4 pistons I would be all over this as it is cheaper to build and easier to find parts for.