I could probably buy a porta-potty to have as a backup in the trailer, because I am not one to use a toilet at an outdoor rock concert...
But I can deal with a reasonably clean shower. No doubt shower shoes would be in order, even if it looks spotless!
I have noticed that you can get a reasonably nice, and slightly larger motorhome, like the Sunrader
(mid to late 80's) for a pretty low price - some even have low miles. You know there is always one out there that someone's grandpa owned and cared for diligently.
SO MANY DECISIONS!