Before you spend a lot of $$$$ on any of those products, do a search on this forum and other RV forums (RV.net, etc.) for Red Max Pro. It is basically a high quality floor wax that many folks have used on their faded motorhomes with really good results. Lowe's used to have it but it has been replaced with a Zep product. It is about $16 per gallon.
Welcome to IRV2.
2007 Country Coach Allure Siskiyou Summit, sold/traded Nov. 2018.
2019 Grand Designs 384GK-R 5th wheel. Glen Allen, VA