I saw a 40 foot (or so) diesel pusher going down I 10 - heading into the Phoenix metro area, flat towing a full size crew cab Chevy truck which was hooked up to a utility trailer with a 4 seat RZR on it. That's a lot of meat and potatoes going down the road but a good buddy mine of says that is illegal. He says you can tow a 5th wheel with a trailer behind it, but not the set up I described. But it would sure solve my problem of needing all my stuff when I get where I'm going. Thoughts?