Re: New Wheels, New Issues...?
I'm not a wheel expert or engineer, but it may also be possible to take the driver side wheel to a machine shop and have them put it on the lathe and machine the mounting pad down some to add some backspacing.
I've got no idea what that would do to the strength of the wheel, but if it's thick enough, I don't see what 1/8 or 1/4" would do. Combine that with rolling the rear quarters and maybe a bit smaller wheel and you'd probably have more then enough space.
2009 CTS-V - 1968 Camaro 327/M20 Sequoia Green