Check the classifieds or Craigslist for storage. You might find an unorthodox storage place like on a farm.
We have been on a farm for 8 years. Much less than conventional outdoor storage & we are indoors, steel framed building, heated, accessible only to farmer & couple of other owners with stuff there.
Smithfield Storage located 3 miles off Exit 95 in Smithfield, NC. Fenced in facility with acres of open storage for RV’s. https://www.smithfieldstoragenc.com