If I could offer a suggestion...
Can someone from the CRG write Joe a letter?
No guarantees, just something simple like:
"Dear sir, According to our research... Here is what happened in June of 1967".
If this is truly a verified, and documented anomaly -
then someone needs to put it down in writing. (not a former owner- no offense)
I would imagine, that EVERY single time that this car hits the market,
these same exact questions are going to be asked.
100 years from now when we are all gone,
someone is still going to ask the same questions again, and again.
Unless maybe they find those shipping documents by then.
Just my opinion, but that would certainly help this beautiful car in the future.
With this stuff docummented, this Z can always reach it's full potential.
To be perfectly honest, even if this car HAD a replacement engine, (which it doesn't seem to have).
I think it still is worth the asking price.