You could make a cool ass ride to do double duty if it would fit. Haul your SXS to the desert, unload and set up camp. Outfit the Sprinter with an awning and a rooftop AC, ARB fridge, with an aerobed. Someone has to has done one up by now.
My buddy from Obey Clothing is on his second Sprinter, and always does them up proper! His last one had 4 bunks in the back, and looked like a house inside. And still fit 4 dual sport bikes! Would be awesome to convert one into a UTV hauler for sure!
Looks like 69" wide at the door and 75" tall inside, 72" tall at the door. Heres a stock Commander in one... Sportsmobile has some bad ass ones if you have 100k laying around.