73 dart quarter panel repair questions

That looks like it may go down as far as i need. I may look into those then and cut what i need out

FYI, reproduction sheet metal isn't usually a perfect factory fit, and typically takes some massaging to make it work. A panel from a donor car is usually better in theory, but most donors are going to have rust problems in the same areas as your car. So aftermarket sheet metal like this is sometimes the only real solution. I have used it on a couple of different projects and it has worked out great on most of them, but one or two gave me second thoughts. I have an AMD quarter waiting to go on my 72 Dart but haven't tackled it just yet.