So I'll start another thread with pics later, but I'll post my findings since I'm home now
I picked up a set of Millie MM2 rims with tires, just for the rims. 18x9.5 rear, 18x8.5 front, ET44. The one good rear tire is a 255 35, and rubbed under any type of acceleration or cornering on the rearmost part of the quarter panel, where it meets the bumper. I am slightly rolled, but not much. I'll be running 225 or 235's no larger. The 255 looked AWESOME, but I have too much drop and they won't fit without a decent amount more rolling. Also, they'd kill my mileage
The 18x8.5 ET44 with a 225 35 tire fits easily in the rear as well as the front.
Also, my winter wheels are ET35 with 235 45's on them all around. The rear tires rub all the time, so IMO ET35 will not be enough with that wide of a rim unless you stretch the tires a lot. Not sure of the width of my winter rims, but not nearly 9".