I’m sure most people are super-excited by minor modifications to our motorhome like this… and what’s more thrilling than toilet paper?!
But fellow owners of our coach (e.g. in the Tiffin Allegro Bus 2016-2018 Owners group on Facebook) might find it useful. For them, we have a 2017 Tiffin Allegro Bus 40SP.
The toilet paper holder used to be next to the door, but was kinda in the way there. I tried raising it up, but that didn’t help much:

So we decided to move it to under the corner cabinet. Here’s the mount, screwed into the cabinet:

The toilet paper holder attached to the mount:

The final result, along with a rechargeable motion light and replaced soap dispenser and faucet:

Much better; still easily reachable, without getting in the way.