Is this what you are looking for?
This piece was from the first Contemporary and Polynesian rooms. It measures 4 feet, by 5 feet, and seems like some sort of vinyl paint on a masonite board. To the best of my recollection, the rooms were rehabed about 1986-87. The pictures were torn from the walls of the rooms, and thrown into piles at the site. Later they were moved to property control and sold to cast members as "scrap masonite" for $5.00 each. Many were torn, scarred, broken and generally and totally trashed. However, a very few good ones made it out alive. Incidentally, at the same time, the also very rare "Pueblo Indian" prints by Mary Blair that decorated the Contemp rooms were victims of the same fate.
I got mine when they were first offered for sale, but at the time, the only way to ship it was Greyhound Bus, and it wasn't cheap. Neither was having it framed!
About 2003-04, I saw one on eBay for $10,000... it did not get a bid. I have also seen, about the same time, a "cut", appeared on eBay that showed only the MK. I don't remember if it sold or not. Obviously, that was the only good section left of that particular example.
I'm not sure what you are looking for when you say "a copy". It's a little big for a xerox or a scanner. However, a small copy of the exact same artwork exists in the first edition (maybe first printing) of
The Story of Walt Disney World. That's the black, die cut souvenir book that is often seen on eBay. There is one on now, but I'm not sure what printing. Later printings had a different "cartoon" map, although those are very interesting as well, they don't show the "VAP" (Venetian-Asian-Persian) Hotels that were never built.
I hope this info helps you with your search...