I visited Rvroof.com aka RV Flex Armor store in Green Cove Springs, FL, yesterday. I have seen them at the Tampa RV show for years now. Even though My roof is in great shape and only 5 years old, I have decided to do the $6100 roof on my fiver. It will put an end to checking, re-caulking, etc., to the roof.
After all, if you have a good rig you plan to keep, then just like your home, a good roof is s must.
Your AF fiver has good bones and if you plan to keep it then I think the investment in a sprayed roof is well worth it.