figment_jiii - is correct. There were several building kits sold to enhance the toy Monorail sales. The big seller was the Contemporary (still being sold), as well as the the Polynesian and the Grand Floridian, which was the last release. The Polynesian was a poor copy of the actual structure, and was not a big seller. The Grand Floridian model looked much better but hit the shelves as collectors had apparently lost interest in the series.
eBay is still your best bet or perhaps a Disneyana show somewhere. Keep in mind the original price was probably $60 - $75.00.