I have a friend who did just this. He does have a storage unit because he has some family heirlooms he can't get rid of. His hobby is knitting so that doesn't take as much room. He belongs to a group called Escapees Rv Club.
https://www.escapees.com They handle his mail and he gets discounts at RV parks. He had some problems with his trailer because it was a recreational trailer not one designed to be lived in. Apparently there is a difference, so you might want to look into that. When he was shopping for his trailer we saw a fifth wheel trailer that had a second bedroom. It looked to me as if there would be plenty of room in that bedroom to store a bunch of stash and quilt in as well.