Your car deserves the correct Buick Rallye Wheels, with the
appropriate centers. I got the ones for my '67 Skylark
convertible from "Wheel Vintiques"(I think).
The Crager S/S is one of my all time favorites, but I think they
look better on a Chevelle.
I've been a GM guy since the 60's, and would be happy to
offer any advice, or part sources, to you.
Looking forward to meeting you at the NorEast Rally.
Uncle Charlie