I'm presuming your motorhome is now polished and looking fine!
If not, we just bought a badly oxidized 1997 landyacht 30, and are in the polishing process, using Meguires products - first, apply then buffing, then wiping off residue or oxidation remover. Next apply and wiper off polish ( like a moisurizer for fiberglass), then finally applying, buffing and wiping down the wax. Not quick, but not as painful as it sounds

.
There are many posts about using acrylic floor finish, but we opted for the elbow grease.
What did you end up using, and how does it look?