I sent a note off to the owner and this was his response this morning.
"Hi I had the 4x4 conversation done professionally by Advanced 4x4 in Salt lake City about 4 year's ago. Had 179,225 miles. In near perfect condition looks wise and running. It has 20 gal fresh water 17 grey and 17 black 6 gal hot water tank. 2 burner stove conversation over / microwave fridge and freezer. Bathroom with shower, toilet, sink med cabinet, fan vent and sky lite. 4000 wat gen roof air and heat. Solor panel to charge batteries. Lots of room and storage. Very nice condition well maintained always properly taken care of inside and out."