Some of our mods to the Jayco 23B:
Added square vinyl post cover across the front A frame as a sewer hose holder.

Bungee corded end caps with breather holes drilled in them. Plus added retainer clips to hold everything inside.

Home made Slide Covers: PVC pipe and fiberglass panel


Also added:
- a battery cutoff switch
- remote battery charging connector
- a solar panel charger
- rain gutter extensions
I also built a wooden step platform (2'x 3') that sits outside as a small porch, but when turned upside down, is a storage container that slides under the U shaped dinette while traveling.