Thanks Frost69. I hope I'm not hijacking this thread. If so let me know and I'll stop or start a new one.
From the link you gave me, I was able to find a bit more info on the salesman at the original dealer and found his daughter on FaceBook. I've sent her a message and hopefully she responds and can put me in touch with her father. Some old photos or stories about the dealership and that era would be fascinating.