Source for panel behind rear window?

Does anybody know a source for sheetmetal patch panels for right behind the rear window, right in front of the trunk? I've seen them for B bodies, but haven't found any A body stuff. Application is a '73 Dart Swinger. The bottom of my C pillars are rusting too, right where the vinyl top starts. Seems like a common problem area. Thanks!

-dave
Author: admin