Actually, there is a small shop about 90 minutes south of JR Junction in Windsor, NY, Village Trains.
http://www.villagetrainandhobb.../pages/Services.html
On my frequent trips to Binghamton/Ithaca I always stop in and buy something, just on general principles.
They also run the area's only train show. at the VFW hall up the blockby Route 11 in Binghamton., NY. The next show is December 2?
That's where I got this for a song!