I must agree with the above poster, there is just no way I would buy an RV, especially a used one, sight unseen from a dealer on the opposite coast. There are simply too many things that can go wrong/be wrong.
Find one closer to you that you can go put your own eyeballs on, and examine with a fine tooth comb. If you buy from a local dealer at least you will have someone you can go back to for service should the need arise. If you are not familiar with RV's take someone who is when you have found a coach that you are serious about.
Please...really think this through before pulling the trigger.