Thanks. So NOS is the way to go
Not always. Using examples like the EPay one it might take you a couple of years to find a full set of four and as mentioned they would not (in this example) would not be 100% correct for your car as suggested in earlier responses.
If you worried or your goal is related to having the car judged (depending on class and organization running the show) then the design features are more important (shape, color, thread count...) than having the date or part number correct. If not for judging the AUTOLITE markings and correct date might be more important
If you could find a full set of the exact correct shocks that matched the assembly line installed ones for your car, completion date and assembly plant yes NOS would be the best choice IMHO
Restoring is often about choices.