I bought this rig 2 years ago from a guy who modified it for extended boondocking. There now is 300 watts of solar with a 2300 watt inverter. Factory generator was removed and replaced with a aux fuel tank. Quick release marine fittings and fuel line allow for generator to be placed away from camper for quiet run time. Included is 3400 watt generator with wireless remote start. I added hard wire jack and slide controls for good measure. Also included is a Dish Wally reciever, Garmin trucker nav unit with back up camera, hitch extension, upgraded shower faucet for better temperature control and many other smaller upgrades and mods. Improved efficiency of refridgerator by adding exhaust and blower fan over absorption tubes. I accidently poke a small hole in the roof and went overboard with the taping, no leaks ever and I drove through some torrentail rainstorms. The other minor issue is the skylight over the bunk, the string came undone so now when you operate the shade you have to pay attention to keep it straight. Duramax NOT INCLUDED.