You can do a few different options. Go some research on disk brake conversions. What a lot of peoria do is go to salvage yards and pick up the wheel hub assembly from a 75-80 Ford Granada, Maverick, Versailles, and I think maybe one more. The only issue with that is these cars are now becoming an endangered species because it's an easy fix on the cheap for mustang fans. Try a classic salvage yard or any junk yards in your area. Ask them about doing this very thing, I'm sure they will know what you need because, when I called to get my set, every junk yard I called knew exactly what I was looking to do.
Cheapest set up by far.