I believe Ford and Chevy partnered with Coachman who would professionally convert stock vans into Class B Vans. They did a great job. It's more than a custom van, more like a camper. Widened it approx 6 inches, generator, propane heat, AC, sink, sleeping area, bathroom/shower, stove, microwave, frig, TV, pretty cool. All with a 360 Magnum, Dodge Power Train. Here is a pic for you to check out.