Package Tray Pic for 68 Dart

Since I have the cage in the car I need to make a custom package tray. What I am unsure of is how the original fit. Is the front edge of the tray flush with the bend where the seat back mounts? Does it overhang a little, or?

If someone had a shot of the tray with the back seat removed that would be great.

Does the package tray need to be removed to get the rear window/gasket in? I assume no, but if it makes it easier I'll leave it out unit the rear window is installed.

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