No exact number will be available for how many were made past the basic configuration (70 440-6 *what trans?), you can also get some numbers based on the exterior color but after that it becomes an extrapolation or guess. As to how many are left, complete crap shoot because there is no doubt that there are some cars that were configured this way (red w/white interior) throughout their lives and without a fender tag or broadcast sheet there is no way to know how it was made originally.
I suspect you want to know this as it relates to rarity i.e. value, well if it is a true 6 pack car (V code) then there is that, past this it is all marketing.
