73 dart quarter panel repair questions

The seam from roof to quarter looks ok, a little rusty but nothing major. I've seen some quarter panel skins online for decent prices, but I'm not sure how far down they go. I'll need pretty much down from the lower body line to the bent lip under there. And a little bit of wheel well area

Here's a quarter skin, as sold by AMD (Quarter Skins | AMD 710-2072-L)

710-2072-L_800.jpg