67 barracuda notch back window rust repair

Hi all, I’m taking on a project on a 67 notchback and I’m a newby to A body’s. Has anyone fixed rust in the lower window corners like this with some words of wisdom to pass on? I’m going to dig into it soon and would like to hear others experiences. Also are there any aftermarket patch panels to repair these areas if need be? How about window gaskets, any recommendations? Thanks for your time and help!View attachment 1715611143
These are the pictures in case they didn’t work in the original post. Thanks!

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