Winkelman Architecture in Maine on the US East coast, working with Interior Designer Vince Moulton and Linken Bay Woodworkers have made a comprehensive and wonderful conversion of an old 1959 Chevrolet Viking Short Bus, theflyingtortoise.
Like the porch idea & some of interior, but need smaller house. A 340 sq. off-grid tiny house built on a trailer. Complete with solar panels and a water recovery system. Built with reclaimed materials.