For many years I have been interested in Gypsy Wagons or "vardos" and western sheepherder wagons. As it isn't practical for me to have an authentic, horse-drawn lifestyle I decided to make a version towable at highway speeds. After reading just about every book I could find on wagons, caravans, old-school RV construction and trailers, a model began to take shape in my head. For me, it needed to be short and maneuverable, sleep two to three people, and still have the air of old world craftsmanship. This meant not looking like a modern RV. My secondary goal was that it should cost as little as possible without sacrificing sturdiness or basic comfort. Finally, I decided on wood as the primary building material as that is what I am familiar with and is definitely a very cozy and comfortable medium for a living space.
Most of the actual work was performed with a table saw, band saw, drill, and a slew of hand tools as I found time around my day job. Although I don't really consider it "done", it is complete enough to use and is currently on the road.
Step 1: The Mock-up
After about fifty sketches and lots of graph paper renderings, I decided I needed to visualize this in three dimensions. Here is my cardboard mock-up of the final design. An earlier version is visible behind it but this one had a lot of appeal for me. My requirements were 7' width for sleeping cross-ways, 8-10' long, and enough height to stand up in. A collapsible bed and table allow for a shorter overall wagon. The first drawing above probably gives the most accurate dimensions for the final product. You can see some changes in design even as I approached the final product.
Step 2: Trailer Conversion
I found a sturdy little cargo trailer with a heavy duty frame and tongue. The first step was to cut off the box with a reciprocating saw and grinder. I intended to save the wiring harness and lights but they proved to be outdated and fairly ratty.