I just replaced a headlight on my car because I creamed a deer christmas eve... Ironic? So i recently discovered first hand how expensive some of these parts cost.... but you should call salvage yards around your city. You should also check
www.corral.net in their FOR SALE section they have a great selection of parts. If you cant find anything there you should definatly check
www.stangparts.com I got my new headlights from their for a fraction of what everyone else wanted them for. That site was AWESOME! Good Luck !!!