find a junk yard nearby. part should cost all that much, but if you don't know what you're doing, they may charge you a bit to have it removed from the car (i know the few around me do..).
or look on ebay for a parts-car contour in your area, there are a few that show up now and then, and it may be a worthwhile investment as maybe you need to replace a few other things on your car, who knows?
