Well...you can look for local swap meets in your area, usually spring and fall. Also Craigslist, Ebay and you can post in the Classified section on this site that you are looking for a pair of headers, but be specific about what you are looking for.
Ceramic coated headers won't come cheap anywhere. Some header paints are better than others, but if you are worried about paint chipping off, you can always use header wrap (tape) that you can buy aftermarket through places like Summit Racing, Jegs, etc.
Rono.
Ron Lane, Meridian, ID