Nice looking MH. Many of us have had luck with using Zep High Traffic Floor Finish. It's an acrylic coating that lasts longer than any wax and easy to apply once the surface has been prepped. You can do a search on the forum for lots of information about Zep and the identical product, now discontinued called Red Max #3 floor finish.
To clean the fiberglas panels of your RV, I use a bucket of water with TSP (trisodium Phosphate) and a scotch pad (*¬*Non-Scratch Scour Pad
) and Barkeepers Friend powder. I wet down the side I'm washing, then wet pad in bucket/TSP, sprinkle a little BKF on pan, and gently clean surface of the RV. Rinse and wipe dry. When dry, apply Zep with microfiber cloth and rubber gloves. Be careful not to drip, a number of thin coats is much better than trying to lay it on thick. It will drip and run if you're not careful. By the time you get all the way around, have a beverage then start coat #2. Repeat.