Thanks for the compliments guys. I believe the wheels are zero offset. So there would be 4.25 in front of the rim, and 4.25 behind. Totalling the 8.5 inch width.
I want the biggest gnarliest tires with the least amount of trimming. I like the tires LittleBeast has, I believe they are mud grapplers. But I dont think I want to "customize" my fender well that much.
I picked up a FourWheeler magazine to look at tire options. There aren't a lot of 32/33 inch MT tires for 18 inch wheels. I'll find some tho.