I've been considering some of those, as an alternative to repro Magnum 500s. Especially considering the declining options for 15" tires. I believe the P225/60R-17s are very close in revs/mile to a P225/75R-15 tire, iirc from my research on TireRack.com.
The question is . . . "What backspacing?"
Nice looking cars and wheels!
CBODY67