I was making the assumption (and you know where that can get you) that you wanted to take both the truck and the RZR. Or, were you just considering putting the RZR on the truck (that you already own) so that you don't have to buy a trailer?
If you were thinking of using the truck to carry the RZR and weren't worried about having a toad to drive on the road, then it would be cheaper to find a light weight trailer to haul the RZR rather than set up the truck to be towed due to the cost of the tow bar, wiring in the lights and the braking system.
Bill