Arkansas Residence information needed

Hi. Is there anyone out there who has their legal residence in Arkansas and are full-time RVers? We sold our house in AR, but prefer to keep our AR residence since we will eventually buy another home in AR. We would like to ask some questions regarding our address for things like Drivers License, which county for Arkansas Personal Property tax and what you use as a PHYSICAL ADDRESS. We have a P.O. box for our mail and a place that picks up the mail and holds it until we call for it to be sent to us. ONLY INTERESTED IN INFO FROM ARKANSAS RESIDENTS. We would like to communicate with you and just ask generalized questions about the above. THANKS.