JayHawk you are a genius! I have been searching for a while. I googled shuttlecraft and there is one 1988-89 shuttlecraft for sale that is almost identical to this cart. I agree with you this will have to be a custom build. I am already brewing ideas on how to manage this thing.
Question for anyone, I have the before mentioned snowmachine motor, I also have now a 22hp Kohler motor. I will have to turn the shaft on the kohler to fit my clutches, or use the snow mobile motor and clutches. My question is this, I want to use this cart more for rock crawling, trail type stuff. Some top end is good but not really what I need it for. Which motor is better for this application. The high power of the snow mobile motor is interesting but every two stroke machine I have been around is more for racing. l think the low torque of the big 4 stroke would be better. I live in the desert too so heat will be a factor. The snow machine motor is water cooled and the Kohler is not. Which ever one I choose the other goes in my EZGO work horse.