Looking good as always Tex. I'm super jealous of the wheels you're having made. I think I'll send you a PM to see how much they are, though it kills me that I didn't wait for this and already have some Lambo wheels. Ah well, the ebay fix is always around for dumb decisions.
I have the body mocked up on the MR2 right now, and the quarter glass area sits right on the B-pillar/quarter panel, so I hope that modifying you did still allows it to sit down nice and flush. I cut mine down as far as I could without going into the inner structure and I'm surprised how nice it sits there, though it looks like crap (not even close to OEM).
edit: for the fins in the wheels - is this a job for a plastic printer covered in carbon fiber? I think it might be