Step 1 On a sheet of paper list everything which you intend on having inside your van. The majority of people can drive panel vans on an automobile license. Today panel vans are a lot cheaper, and Ambulances are pricier.
A steel-and-concrete one-room dwelling on Salt Island in British Columbia by Tom Kundig of Olson Kundig Architects in Seattle. See the outdoor shower and more in A Master Architect Builds a Tiny Cabin in the Pacific Northwest.