Thanks Carl, for the update. Very interesting. I still have a copy of a car and driver new car buyers guide from 1966 or so, and the 427 cobra was listed in it. I haven't looked at it in at least 40 years, but remember thinking at the time, wow, $4700 for a new car!
I might be off slightly on the price then, but I think I am pretty close. Amazing. I should have gone into hock to stash one away.
Cheers
Randy