DO NOT use NuFinish on that camper. NuFinish is a cleaner wax and is abrasive. I have used a Carnauba Wax in the past. It will make the Orange pop. The downside is most Carnauba waxes don't last long.
I'm going to test this. https://www.walmart.com/ip/Meguiar-s...EaAtxaEALw_wcB
This is supposed to be the fastest and easiest wax to use. However, it's a sealer and for best results I would use a Carnauba Wax first then apply the Ultimate to seal.
NuFinish should only be used on a car that is bad shape and needs restored.
You will get many opinions on wax, and this is just my opinion of course.
I have waxed several campers and of late my 2017 Vista LX 30T. Boy was that a chore. I'm looking for something fast and easy. I wouldn't mind having to re-apply the ultimate fast finish multiple times if I had too. Youtube it.