Re: Owners manual
Most of the RV owner's manuals are of little to no value to an owner. What I suggest you do is to visit the websites of the manufacturers of the appliances and get copies of the owner's manuals for them. They are of much more value than what you are being offered. Before you buy one for the RV, get an owner to let you look at theirs as you may be shocked by how little of value is found there.
Along with the websites of manufacturers, the one for Bryant RV also has copies of service manuals for most appliances. There are other sites as well. I think that the book you are seeking will be worth very little to you.