While cruising the Bahamas last year I had the pleasure to meet two guys on a 24ft boat that they had sailed from Denmark basicly with no motor. They spend 6 months on then work for 6 months. No oven but they showed me how they bake bread etc. on a single burner cooktop.
www.prinshenrik.blogspot.com When looking for a bargin boat visit the yards and look for boats with old registrations and get the owners number from the yard.