Post over on 351c on Facebook. The posters there seem to be very uneducated but there are a few that generally hide in the shadows that would know what you want and could possibly have one.
UNFORTUNATELY you are going to need to go through dealers and in my experience they act like I am upsetting the first grade class and need to go to the Principle's Office, i.e., I don't know anything and they are Moses with the 10 Commandments lecturing the crowd with their gifts of Heavenly knowledge.
That is unfortunately the way it is and probably how it always has been and most of the 351c crowd is in search of their own individual brains since they all seem to only share ONE and they only get a turn of a few hours a year to use it? Forgetaboudit!
Kind of sad actually.