I Just read the light cover post. I have the same light fixture and ordered replacement cover from this link a while back. Best !!!

https://www.walmart.com/ip/Specialty-Recreation-SR33101-Replacement-Light-Lens-for-Lighted-Assist-Handle/175204032

Make sure and get one that has an actual ground wire on it since the camper won’t be grounded by attaching the socket alone.

The 26g fresh water tank arrived, and I am still snickering about the randomness of this upgrade.  It replaced the 21g from the factory for a whopping 25% increase in onboard water.  I stuffed it in place to trial fit and it friction fits as if I made the slightly larger space for it, which I did not.  It's slightly larger for more comfortable seating than the factory height.  Here's a picture.  The plywood back of the cushion that covers it actually lightly touches the top of the tank, plus it's shorter and allows more room behind it, and bonus - the weight of the water moves forward a few inches toward the axle and away from being suspended far back on the frame: