1965 Dodge Dart Charger

65dartcharger said
I wonder if they were delivered with them at all? Would it be easier to add the door knobs at the dealership?

Cars got their door lock knobs at the factory, not at the dealership.

I know for sure that the mounting kits for the front and rear license plates were in small bags in the glove box! That was easier for the assembly line to keep the speed!

Also, some US states do not require a front plate.