Jim would be better to answer this. As far as “known” 62’s, I may have the only one. For 63, I believe there would be over 10 easy enough but that is just a guess. I did not keep track of the ones I know were factory 4 speed.
There is a 62 4 speed Jetfire that had the tags, engine and transmission put in a convertible but that don’t count because the original car is long gone.