Driver fender is a hot mess...

Little background... dad bought this 1969 Dart Swinger 340 car 20+ years ago. We knew this particular fender would need help. We thought it was a dent that had been (poorly) filled with bondo… yes and no. It appears to have been wrecked, and then the bottom rear section was cut off, and BRAZED back onto the rest of the fender. Photos don't do the mess justice... but here they are. I think this is beyond my skills. If I could easily get the brazing out, I might be able to make it work... but then I still have to straighten everything. Anyone got any tips for removing brazing?

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