Do you guys think there would be a problem going wider in the back if the diameters are kept close? I was thinking something like
275/55/18 up front and 335/45/18 in the rear.

Any TOD issues that I need to worry about (the diameters should be 29.90 vs. 29.87)? What about stability?

I know the custom wheels would cost an arm and a leg....

What do you think?