I'm stuck in the same situation as you. I did my 2.5" HBS now I'm debating on 18's or 20's w/35"ers but everyone I'm talking to says I'll have rubbing issues. I might just go with 33's to avoid the it.
I'm pretty picky on how my tires and rims are gonna look. DAMNIT. Here's 2 sites to give you some ideas.
BEFORE 2.5" HBS