IF you are a fulltimer you need to license in Texas (Escapees), South Dakota ( Hart's Ranch) or Florida (Good Sam's Mail Forwarding Service). Then your car and motorhome will have the same plates and you get a driver's license from that state also. I licensed in Pensacola, Florida, with Good Sam's where there is no income tax and we are considered residents of FLorida. Our driver's licenses have the Good Sam address with our PMB #. You will have to give up your residency in California, so if you are still working in CA you are probably out of luck.
Florida charges a $100 one-time fee for each vehicle you license in the state. Our 1997 motorhome cost us $47 per year. You will have your LLC on your Florida title.