Living on a shantyboat, to me, implies that you are going to be independent of shore-side utilities; water, electricity, waste disposal, etc. A lot of people use camping and outdoor suppliers to meet their needs avoiding, as much as possible, costly marine outlets.
I recently stumbled upon the web site for Lehman’s Company. Established in 1955 by Jay Lehman to “serve the local Amish and others without electricity.” As their web site says: “My idea was to preserve the past for the future generations. My goal has always been to provide authentic historical products to those looking for a simpler way of life.”
Some of the company’s departments include appliances, home goods, outdoor, stoves, toys, lamps and lights and other esoterica. A lot of it isn’t cheap but most of it is really cool stuff…check it out here: