I’ve been investigating more and only got more confused.
Driver’s side trunk lip has 8MC 12L.
Drivers side radiator support top has 72515? and side has 0D-15
The rad support reads 7251517300 this is what I expected from your fender tag. This sheds some light that the 7 is the model year the 2 should be the same number as the 7th number in your vin on the door A piller. If so your car was built in Hamtramic, MI, the 515 (may 15) is the build date from the fender tag and the 17300 is the sequence number.
The OD-15 I suspect is also a manufacturer code.
Be carefull how aggressive you are around the rest of the stampings, might be better to use some paint remover to uncover the rest.