Parting a 68 Dart sedan

Kind of a dumb request on my part ( :D ) but I need the plastic body plug that goes in the hole in the firewall that is about 4 inches to the left of the master cylinder. It's and odd-ball size and doesn't come with the body plug kits.

Let me know what you need to get it to me here in Connecticut, or if you need something equally small/dumb, maybe we could do a trade? LOL

Thanks,
George