Unfortunately, I don't have any nearby fellow E-Body owners to consult with, or more importantly inspect some original body.
Here's what I've got, I purchased a Goodmark replacement right rear quarter and got it put on and made the mistake of ditching the old quarter. Noticed after priming out that the line down the quarter is broken slightly by the gas nozzle/hole. I can't tell if the fabrication of the quarter deformed the horizontal line of the quarter or its suppose to be that way? It looks fine the way it is, but want it to be as close to original as possible. Thoughts? I thought about posting pictures, but not sure they'll show enough,