I bought a used (3rd owner) Leisure Travel Van (LTV) Free Spirit 210B Class B van. It is built on a 2005 22 foot long Sprinter van with the diesel engine. The interior behind the cab is 14 ft. by 5’8” yielding about 79 sq ft. The cab adds about another 2 1/2 ft. to the center console. The passenger seat swivels to the face the back but while comfortable, it is too high and lacks one armrest. I’m trying to figure out how to make it more comfortable as a lounge chair maybe with a computer desk thing. It was not inexpensive at about $50k but I wanted the gas mileage and longevity of the diesel engine.