Top of the Inner Fender...

Ok most of you die-hard guys might have came upon this alot. The top of my inner fender is rusted to heck and back. On the drivers side is the worst, its rusted up neck to the fire wall and i had to cut it with metal shears to get the fender off because the bolt and all was messed up. You couldnt take the bolt out with the usual wrench and a lil pullin... just spun and spun and spun.

I would like to know if there is a replacement panel for that some how. I know Year One makes a part like the one I am in search of for the Challenger. But they fo not make one for the Dart. Anyone have any ideas or suggestions on what to do?

Help me fight cancer on my car and to save another Dart from the junker.