As long as Cragar still offers their wheels in 15" with the small bolt pattern, that is the way to go. No sense in spending $100 on adapters and then buying new wheels, too.

Cragar used to offer custom back spacing by special order. I have a pair of 10" on the Cuda now that I special ordered. They weren't much more money either. Cragar helped me spec them and gave me the number that I then went to Summit and ordered. Now that has been 10 years or so ago, so................