The Zen Cottages are built by Ben Rawson, an organic local farmer in Encinitas, California. These tiny houses on wheels come in or lengths. - keep bay window couch, add fire place and drop down projector for tv?
This would work, bed could also be couch with just adding pillows. Add bathroom & kitchen, MY NEW HOUSE! :) The Ovida tiny house, a 160 sq ft vacation rental at the Getaway House resort north of Boston.