Rusted package tray corner, trunk hinge support. Need help.

[cwmiller]

Hey guys,
Need some help. I'm in the process of replacing all the cancer in a 1970 GTO. Today, while I was cutting out the truck pan I noticed that the support metal underneath the rear window panel is trashed. I already knew that the package tray corners were bad, but I didn't know that the support for the trunk hinges and rear window panel was. I took some pictures, 'cause it's kind of hard to explain.

I wasn't sure how to repair the package tray to begin, but now that I came across this I'm really not sure. Any advice is much appreciated!!

Package tray corner (right, passenger side)




Rear window support/Trunk hinge support (right, passenger side)

Trunk hinge is on the far left of the picture. The piece to the right of the hinge is part of the support metal that I pulled away, pretty rotted.