Yeah, I've been crazy about those wheels for years. In the mid-70s a guy on my paper route had a '70 Boss 302 that had American 200S wheels, 15x7 front, 15x8 back. He ran the original Radial T/A 50s that said "Radial T/A 50" on the sidewall and it had a mean rake. The car had the look of the Bud Moore Trans Am racers. I'd always stop and gawk at that car and especially the wheels. That's how I learned to ID them, sitting on the sidewalk at 13 years old and staring at that Boss parked at the curb.
Oh, and when I first saw the Musclecar Color History book on the Hemi with your '70 on the cover with those wheels I flipped. Yep, bought the book on the spot.
I still think you should have a set of 'Dick Landy' skinny Cragars to swap on once in a while... Perhaps some NOS 7-9" slicks out back?