So these things have absorbed my interest lately, there is a whole society of homebuilders that have built hundreds of unique designs.
This site is the holy grail of the movement, some are incredible, some you wouldn't believe what they packed into a little tiny space.
Most start with a 4' x 8' Harbor Freight trailer and build up from there. Keeping the sidewalls based within a 4'x8' sized plywood sheet, the costs and weight are as minimal as possible. If everything is laid out well, you have 6'6" or so of sleeping length.
It's all me and the ol' lady need - bear-resistant sleeping, a galley, and easy to pull and park. If I pull off the design I'm thinking of, I'll be into it for less than $1000.00 including a new trailer frame.
Just wondering if anybody has ever messed with one before.