That is a nice thought but i don't think i could be that lucky!
Sorry for my ignorance but are you suggesting that of the 1.5% with ZF's 3% of those would be Calif Coupes? thats like 20-30 cars according to this site if you take those values. Interesting.
"this is a rare option - some 800 odd cars from 1965 to 1971 were equipped, The 5 speed, a ZF transmission type ZFS-5-20" from Technical Manual.
Is there a way to find out exactly how many were made, contact at Mercedes or a person in the know?