I wouldn't go with a 33 unless you want to hear constant rubbing when flexed. A 32x11.50 is almost too big since it rubs the fuel line cover. I just ended up taking the cover off to eliminate the rubbing. If you keep the 16" rims, you could go with a 265/75/16, that works out to be about a 32x10.50 which would work beautifilly. You could go with a body lift to get the 33s under there with no rubbing, but you are messing with the center of gravity and not to mention loss of power due to the bigger tire.

You can fit a 32 under there with a bit of trimming and a T-bar crank.

I would personally get the tires, skids, and sliders first. Save money on the lift and get a bull bar and winch... then pick up the lift.