Go with 33's you do not have to get a body lift, just trim some metal and plastics, they fit nice.
I have 33's with 15x8 rock crawlers 3.75 back spacing and the tire stuff fine in the back with some pounding in the well. The front will have to trim front plactics and cut sheet metal about 3" from your door, and on the line that is on your finder, it about 2.5 inches, all the pounding and cutting takes a good days work.

The best offroad vehicle has the biggest tires and the lowest center of gravity, with out thebody lift you will have that.