A friend is buying a 2 seat Arctic Cat and since its longer than his shortbed truck he needs to buy or make a rack so he can close his tail gate to tow his RV. Any idea where to find such a thing?

 

I'm not sure how long those AC's are, but I would consider building a rack for the back of the truck so the ATV sits across the bed. See if he can make that work. If he's towing a camp trailer, I don't know that he would want that hanging out over the rear.
If he goes to a welding shop, I'm sure they could build him a ramp style rack that he could drive up onto whereas the front of the ATV would sit up over the cab of the truck. Many different options out there I'm sure. I've seen some pretty creative stuff fromt he folks on here.

Good Luck