67 Fastback rear deck filler panel repair ?s

So, the center panel sits on top of the qt, and the qt is offset to accept it.
Can clearly see in first pic on the bottom edge of trunk gutter, arrow on left is seam, arrow on right is where offset begins.

Inside in same area, the qt takes a 90 degree turn towards the outside, so the seam on the outside may do the same when transitioning from the gutter to below the window. Shown more clearly on right side, between lines in second pic.

Inside, I see the structure holding it up turns down at the end, but I don't/can't see spot welds anywhere, third pic.

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