True 67,8 & 9 Formula S Barracudas

This is probably just pie in the sky, but the way I see it, is that any "registry" is accomplished over time. As new entrants are discovered they are added to the list. So by their nature they are always incomplete, awaiting the next entry. Only after time could be it be viewed as a rough guess as to how many are remaining. They should never be viewed as the final authority on the subject. It is only awaiting the next barn find. Still, for what it's worth, it's nice to know.