Welcome aboard.
My suggestion would be to "camp out" in the driveway for a LONG weekend prior to hitting the road. Load the coach with kitchen stuff, bedding, towels, food, water etc. and really camp out. Use all the systems a couple of times.
If you are not a plumber, electrician, carpenter, mechanic now, you will soon be.
If the tires are OEM, they are 5 years old, so they should be good for another couple of years. You know you're going to grease her and change the oil, but the Tx and rear end only require checking at this age.
Once your satisfied with her condition, get out there and have some fun!!!
Mike in Colorado