Asbestos in RVs

You can get dyi test kits everywhere just do a quick search. First Alert sells one, and I think home Depot does too. I had a mold issue after a water intrusion problem at our cabin, I don't remember the name of the cleaner I used but it was chlorine based. It made the black mold disappear before your eyes. My problem was on vertical walls, yours may be more complex with nooks cranies, and upholstery.
Please update us on what course you take and the results.
Good luck