All I can add it that when I first purchased by 70 Challenger RT; I contacted GTS and ole Galen told me that if I didn't have a broadcast sheet there was nothing he could do for me in terms of developing/making a new fender tag. I had told him I didn't want anything on the tag that wasn't obvious or appropriate, but he wasn't having it. I suspect his standards may have lowered or the seller is full of crap (perhaps a little of both).
I see this as a result of the "mopar fever"; he has a car and is trying to maximize his profit margin while trying to appear above board. This probably will work with a new to the hobby buyer, however problematic to someone who knows.