Thanks Martin, for the input.
I was just searching online for a solution and have to agree that the options for an original footprint are pretty much nonexistent, so I went and reassessed the condition of the original distributor I have (that appears to have never been out of the engine, judging by how reluctant it was about being removed,) and what I found makes me wonder how the engine runs as good as it does. The vacuum advance and or the breaker plate is stuck, all the metal surfaces are covered with oxidation and the insulation on the wires is melted and or bubbled up and distorted from over heating. I has obviously had a rough life. There is no way I am reinstalling that distributor in that condition. I can do a rebuild but am wondering about the availability of original replacement parts. Any suggestions on a source?
