What's wrong with this picture Part 2, but much more serious this time.

I know its alot of work but you should replace the whole frame rail if you can. I walked away from a Plymouth Duster a few years back because it had welded 1/4 steel plates over frame rot...on the left front right behind the control arms. But that's another thing if the frame rail goes back that far I think it does all the way to the torsion bar cross member.