I have a 2000 Volvo 660 Highway tractor that I modified to be my RV puller. It has a 66" bunk and has a fridge, microwave and TV/DVD installed and I also installed leather air ride captans chairs up front. I removed the front axle and rollled the rear axle into the forward position, then buillt a deck out of 1/4" steel plate. The side storage cabnits are slide out tool boxes and storage. On the deck I carry a 700 Polaris Sportsman quad and 350 gallons of fresh potable water, I have also innstalled a Trailer Saver air ride hitch with a Binkly head . It is very comfortable on long trips, rides better than a caddy and gets just under 10 mpg pulling all my toys. I tow a 41 ft triple slide toy hauler behind that. It has a 10 ft garage in it that I carry the wifes Polaris 300 quad, a BBQ and smoker, chain saw ect, ect. It also has a 50 gal fuel cell for powering the genset and fueling up the toys. It is set up for camping off the grid with a 3000 watt inverter, 5 100 watt solar pannalls, 6 golf cart battries, auto aquire satilite system ect. And behind that I tow my 1994 Jeep YJ. We do a fair bit of quading in the mountains, but we use the Jeep a lot also when we want explore areas that are farther away from where we are camping. We are also into metal detecting and take the jeep up to some old mines and mining camps, you would not belive the crap we find LOL. In the Spring as soon as my work is shut down we are going to head for Moab and down into Arizona and go do some wheeling down south. During the summers I also drag race and the volvo pulls my race car trailer.