Trying to source parts in Canada
There's National Moparts in Beaverton, Ontario, lots of used stuff and new stuff ->
http://www.nationalmoparts.com/index.ihtml
I've bought various stuff from them for my Barracuda, including an NOS horn cap! They have a few truckloads of NOS stuff.
Their website is outdated. If you call, Nigel is the used parts guy.