Buy another RV.
Once critters get in, you'll spend your life finding all the places they've gnawed holes, built nests and left their droppings....
If you want to keep your RV, you'll have to find and properly repair every hole they've made. Clean out every nest. Remove their droppings from every nook and cranny. Sanitize and deodorize every piece of fabric and wood.
Good luck with whichever path you choose.
TT 2015 19RD "TheJayco"
TV 2003 F-350 "Montblanc" - Housebroken chore truck
Sitting in The Cheap Seats.
And proud of it!