Suburban rear door jamb rust fix

[2manyburbans]

I was wondering what is the best way to repair the upper door jams on the suburban model I have a donor truck but I have to cut parts myself and I'm not to sure on how I would cut this section out or are there alternatives to fix this area

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[TotalyHucked]

Yikes. I'd be finding me a new truck. That's the worst possible area to repair