Pop Out Quarter Window ?

I posted this the other day, it shows the cut out necessary on the 70-72 sail panels to fit the 73+ pop out windows. I'm doing mine as part of cloning my '74 Duster over to look like a '71 Demon, but obviously the same thing would apply to adding a later set of pop outs to an earlier car. The original panel is on the left, the modified panel is on the right. I removed part of the reinforcing corner piece and then trimmed the edge back a little to clear.

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