Good luck on your search. You may want to join
http://www.yellowbullet.com/forum/index.php and ask there. It is a popular racing forum. Given that your old car has been off the road for 15 years now, it could be sitting in someone's garage with plans of making it a race car. It's worth a shot.
As we discussed, try posting on Craigslist in and around St. Louis. GOOD LUCK!