I sent you a PM that suggested a grassroots fix of: 2 tabs welded to the rocker, a come along, and a jack on the inside (if needed).
A stud welder or a dent puller just won't move metal in that area.
Of course a frame machine and a new rocker would be ideal, but cost a fortune.

Or, just leave it to give the car more "character", if you can get it aligned.

I also suggested a non-painted door and fender and hood and trunk and .....