close to Arkansas. Very close.
My guess is Colaw, as Tina referenced in post 2 in this thread, is what you're thinking of. OK, Carthage is clear over on the west side near Joplin, but I don't think there's anything closer.
However, the reason I chimed in is to tell you about the Classifieds here on the forum. Specifically, one add: Airstream Bumper - Airstream Trailer Classifieds - Airstream Trailers For Sale
It's for a bumper. Not that I think that you are looking for a bumper, the reason I brought it up is who placed the ad. jimrogers121 is in Jonesboro and buys and sells Airstreams sometimes. I bought my Excella from him a few years ago. He doesn't really post on the forums other than the occasional classified, but he and his wife are absolutely great people.
If you contact Jim, he might be able to point you in the right direction.
Oh, also, welcome to the forums.