From the rotabuggy jeep photo, assuming that the wheelbase is the same taht of the normal willys jeep, 80 inch., scaled from the photo above, gives a 188.5 inches to the caravan lenght. Assuming the distortion on the photo angle and depth, I consider 190 inches to be a credible dimension. Based on this I'm thinking do draw a plan of it, at least, exterior views, as I barely had seen any photos of the inside.
If anyone can give a contribute, please do!
There are some good photos around the net, it would be great if someone "centralized" them all in a post somewher!
G_Mendes