Rear window rust repair without welding

I'm not welder and I don't own a welder. I need to repair the rust around the rear window of my 74 Dart. Am I stuck paying a body shop or is there an effective way to do this without welding?

I know somebody will ask for pics so, sadly, I'll have to say up front, I don't have any and the car is currently 1,000 miles north of me.