I did a scale model based on measurements taken from the type of minivan I plan on getting - the scale is one inch equals one foot. The design I came up with gives me a six and a half foot by 4 foot bed if I want it, while condensing down to basically a bench and counter, with a 6'6" x 1'6" x 1'3" storage space on one side and a 4'x1'x1'3" storage on the other.