Traveling as I do with TWO cats.. I can give you a list of suggested modifications.....
Carpet, Cats love carpet, they call it "Scratching surface" get good strong carpet and plan on replacing it.. OFTEN
Chairs and couch fabric.. They make a special fabric for use on chairs where cats are present. it is calle CHAIN MAIL
Re-cover everything with CHAIN MAIL,
Doors, cats KNOW HOW TO OPEN doors.. Yes they do, it's a secret they try to keep but the cat, so as to say, is out of the bag, and will be out of the motor home if you do not re-design the locks a bit (Standard Hook and Eye are goog. padlock with key is better)
That covers the major ones you forgot.