You can rest assured that the car was "ordered", whether for a customer (i.e., "Sold Car") or for the dealer's stock. When a customer went to the dealership, not finding specifically what they wanted, then the dealer would "special order" the car, knowing that they'd sell it anyway, with no down payment. Or the order could be marked "Sold Car" for possibly more urgency in getting the car built, whether the car was sold or not. Lots of ways to look at it.
The "Standard Book of Chrysler" has production numbers for the models only. As my '67 Newport CE23 was about 25K, for the basic model, you can go from there. The fact that my car has the optional bucket seat interior (with the center cushion), and also is a 383 4bbl car, those two additional options would decrease the total production numbers for the particular car much lower, I suspect. That the body is Turbine Bronze with a white vinyl roof is another factor in a lower production number. But these things are pure speculation from what we saw back then. There might be some installation rate percentages for the model years, somewhere?
Your car looks good! I concur that getting it running/driving/performing well is the best way to do things. People will surely say "Don't see any of them anymore" when they see it at shows and such. To which you can smile and say 'I know. That's one reason I have it." One plus, no vinyl roof!
Might want to get a quality orbital buffer to ease the polish/wax operations!
Enjoy!
CBODY67