One option to consider is running the same size 20" wheels all the way around while maintaining staggered tire fitment. Here's some examples:
20x8.5 +40
225/35-20
255/30-20
20x9 +38 (may require fender modifications)
245/35-20
275/30-20
TSW builds great models in the 20x8.5 size and I know Vossen has some applications available in size 20x9 as well. Please let us know if we can help.
-Matt
20x8.5 +40
225/35-20
255/30-20
20x9 +38 (may require fender modifications)
245/35-20
275/30-20
TSW builds great models in the 20x8.5 size and I know Vossen has some applications available in size 20x9 as well. Please let us know if we can help.
-Matt