47-55.1 HELP - bent window frame

[8man]

I got the driver's door welded up, all the new parts fit into it, ONLY to find the frame is bent. If you follow the straight edge up you will see the two parting ways.

IMG_2187 by Robert Moorman, on Flickr

So I started checking and here is where the bend is.

IMG_2188 by Robert Moorman, on Flickr

You can barely see the ripples where it is bent in. I have it on the cab, and it is hitting the cab before it closes all the way. If I push the door in about an inch to where it would latch, it looks like it will adjust out nicely if it weren't hitting the cab because of this bend!

HOW dd I fix this?

I thought about using a cut off wheel, cutting into the frame, bending it out until it matches the other door as best as I an and then welding it all back up, BUT I just don't know.

Thanks.