9 Inch brakes 64 Dart Gt Help

It is on the back burner for now, I have future plans for the car, I am not ready to invest the kind of money to do a full conversion. I did see a kit on ebay which uses the Toyota Previa rotor and caliper which retains the small pattern. This car is driven maybe 200 miles a year. I just want to get the car together for now, and do some other work before investing in modern brakes.