I am looking for an off road tire set up as well. From all the research I have done I can yet find anything that will fit. The problem lies in the part of the front suspension above and to the inside of the tire that only has about a 1/2 inch of clearance. Once you put an off road tire on it will rub (due to higher sidewall height). Only thing I can think of is putting a wheel spacer on pushing the front rims outward to gain clearance for off road tires.
you can see what I am talking about at the top of this picture.
If anyone at all has any solutions help us out.