Need height of Targa quarter panel "lip" for back window seal

[Winter911]

Hello.

This is an odd request but I'm getting ready to covert my '72 back to a Targa from a convertible.

I'm looking for the height of the lip on the quarter panels that the back window seal grabs on to... mine seems like it has been ground down a bit.

Pictures would help a lot. Anyone has any idea how to go about adding material to the lip in case it has been ground down? it is metal

I hate that the PO did this to the car.

Any help or guidance is greatly appreciated.