Thanks for the quick reply Lenny. I think that difference would work for me. I looked up some of the ITV top speeds and the RZR was the highest at 63. I'm pretty sure this will be faster than that especially with the larger tires.
I was curious where you were able to find your wheels. I did find the Vision Buckshot wheels on their website, but couldn't find a vendor to purchase them. I also found the ITP SS Alloy SS212 wheels on the ITP website, but again no place to purchase them. Also - I was curious if 15X7 or 15X8 would work better. I'll probably trailer it to most of the place to ride off road so I don't mind swapping wheels before I go.