[Bill Baxter]

A couple of thoughts on your questions:
Join the Escapees RV Club and use their mail service. Rated one of the best. That leaves with a Texas address in Livingston, Polk County.Most full timers are homeported in South Dakota, Texas or Florida. Mostly for tax purposes and ease of doing business for auto registration and voting.
We use a Florida mail service. Excellent service. The nice people extend to all the county offices for auto and voter registration.

Your problem, as with all full timers, is weight. Most motorhomes don't have much weight capacity. Check the GVWR (Gross Vehicle Weight Rating) of any units you are interested in then weigh the vehicle. GVRW minus weight = carry weight. Then check GCRW (Gross Combined Weight Rating) this is a measure of GVRW plus towing capacity.

We are semi full timers, still have a house, gone as much as 6 months. Since the DW is a quilter we have a stock of material, sewing machine, quilting hoop etc. All takes up space and weight. That's why we are on our second bus conversion. First one was 35 ft this one is 40ft. Coach weighs around 31K lbs or less when road ready. Full water and fuel. Since GVRW is 40K lbs we don't worry about picking up a few trinkets while traveling.

73 Bill