Oh Peter, the memories come flooding back! :'(
This is the "one that got away" for me, the one that I refer to in my very first post on this forum.
Even before Peter sent a mate to look at this Zed down in Canberra, I phoned the owner and offered him his asking price sight unseen as he seemed honest and straight-up with the description of the car.
Problem was, he was too honest and straight up and told me that he had promised Peter first dibs, and would call me if Peter didn't buy it.....
Well the call never came and the rest is history and I bought another silver Zed.
Hope you can keep it for your sons.
If I didn't value my marriage I would buy this Zed in a heartbeat!