There were a few 14 foot trailers when we were looking. Escape, Scotsman and Ameri-lite are all nearly identical in floor plan. All have most of what you are asking for but small is small. Tank sizes were one of the things that kept us from getting them. Solar can be added by the dealer or you could do it. A portable might be usable too. Same with the generator but these usually have a window type of air conditioner, so you could use a smaller inverter generator.
Here is a link to the Ameri-lite version.
clickWhat do you plan on towing with and how/ where will you be camping?
