love that idea ... I'm from the UK, but have lived in the US since '95 ... fell in love with Airstreams about 6 years ago and bought the mother ship of all trailers, a 31' Land Yacht from 1972 ... stylish beyond words, light (5,000lbs) but not very practical !! I take it out once or twice every year and have been renting on Airbnb in my back yard (garden).
My dream is to tour the British Isles coast right up through Scotland & Ireland ..
You're better off finding a 24' model for easy access to most parks, but even then you need to book ahead to the day. Parks book out 6 months in advance to the second ... it's a nightmare in Cali. Good luck & have fun