sounds like a nice car to restore
the production numbers are in the same ballpark as I have seen
# left, I don't know if it is because I have one but I know where a lot of 67's are and not so many 68 & 69 convertibles
I was going to go with a 440/auto combo in mine. Ended up with 340 4 speed. It was a 6 auto on column with few options so I don't think I hurt the value