Noel, most people read all the forums, so posting several times just makes it harder to collect answers. Also most people don't want to reply to the same question several times... Getting fussy that no one replies is bad juju in a forum.
Noel, do a web search for "small scale live steam". You'll find some international organizations, which publish member addresses, and many other resources. There are several live steamers in the Raliegh NC area, and elsewhere in NC / SC / VA.
16mm.org has over 4000 members internationally. You may have to travel a bit to a weekend steamup, but keep searching.