From your original description I actually thought you might be a guy here in Fresno that I know. Similar story on a '67 R/T convertible. I don't know if he has any extras on the trim clips, but he has spent the better part of the last 30+ years buying trim parts for all Mopars and selling them. I don't see him much, but I do see his brother from time to time. I'll see if I can find out anything.