Excuse me, but camping trailers have been around for years and cost less than $20,000. . . and have better amenities. . . and can include larger beds, air conditioners, sinks, bathrooms, etc. and don't look like converted porte-potties.
"As for a new trailer, the costs will greatly vary depending on the features and options that are added. Typical new Scamp trailers can range from $8,000 to $18,000."
So why settle for an ex poop house when you can have something that is purpose built for human comfort?
I have a friend who has been traveling through the south with his wife in a scamp like this. They spend most of their time hiking or checking out the local micro brews. I think they are heading back to Maine for the summer.