I was in the same situation when I bought my 03. Best advice I can offer is sit down with your manuals and read them. Get to know your coach front to back. These things require constant attention and you should get to know how your new occupation operates.
. Lots of new things to learn.
Did you get service records? If you did you're way ahead of me. If you're not sure, you should get it fully serviced and inspected by a good qualified shop.
Not to scare you but, A good credit card limit is a handy thing to have.
Don't be afraid to ask questions on this forum. Lots of good advice at your finger tips.