Take whatever the going rate is around the country and add 2K for being “Western New York: The land of the overpriced cars”. That should be around the right price unless you get lucky and find someone that needs to get rid of it quick. Since a car like that is a luxury around here that’s not very likely. Your best bet is to find one on miata.net and travel to pick it up. For that one you posted, as other said, they’ll get 8-9k for it because of the low miles unless it’s in WNY add 2k.