Max your bars, shackle, aal or block in the rear, and the 33's should fit fine...might have to trim a bit.
If you want 35's you'll have to BL. I don't like the look of body lifts on most trucks, but for some reason the Rangers pull it off. Keep some step sides on there with gap guards and most people wouldn't notice its a BL. I've never cut and re-welded a hitch before, but from what i've read it isn't a big deal.