Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
Some dealers will search inventory at other dealers, it wouldn't hurt to ask around.
Salvage yard is probably the best bet. Is this for a 2-door? Hope that it isn't specific to those models and you're odds improve. A 92-94 K-Blazer may match as well, it's something to keep in mind.
Car-part.com is a good search engine for local salvage yards.