How about buying a Ford E450 Box Van with a diesel motor and converting the interior yourself?
You may not get the box length and the overhead sleeper part, but you may get the chassis, box and diesel motor. I think most boxes are in the 12-14-16' range.
The diesel motors are a $5,000 option upgrade. Most RVs in the E series are built with a gas motor to keep the price down. I'd like to know what percentage are gas versus diesels in the RV versions.
I own a 2002 Ford E350 dually, with a 14' Grumman box, pass through opening, metal roof, slat walls, roll up rear door, with a 7.3 diesel. It runs like a fine sewing machine at freeway speeds. Quiet...
I'm thinking of selling and have it listed locally. I want a Class 8 Truck Conversion.
Here are a bunch of Ford diesel box vans currently on ebay: http://motors.shop.ebay.com/it...em245QQ_sopZ3QQ_scZ1