The enclosure I am suggesting is the one you always see upon the tongue of most trailers, Casitas and Scamps always. In fact, when you signed onto this site you cand see one on the white trailer parked in the woods at the beginning of the site. You have seen them everywhere, cheap, lightweight and low cost.
They are white or ivory and are just a thin plastic shell that slips down upon your tanks so as to protect them somewhat. Mine is too high, designed for 30 pound cylinders but I only have it covering a 20 and a 10 pound cylinder. At first I hated the extra height but then I rationalized & thought it might protect the front of my Casita
more from flying debris when I tug it along gravel/clay/etc., roads