The Acorn was produced in 1979 for one model year after Scamp
was sued over the use of the name by another RV manufacturer. They won, and resumed production as Scamp
by 1980. So, for all intents and purposes you own a "Scamp" by Evelands. That may help you with any search items.
However, to answer your question. I'd get it squeaky clean, absolutely safe to go down the road and then sell. Unless the cushions are totally skanky, it's possible a future buyer would prefer their own colors.
Value is what a seller wants to sell for and what a buyer is willing to pay. It's all over the board. Then too, location, location, location.