The hoist didn't work as well as I had hoped - there is a lot of flex in the arms.
The lever thingie I made worked fairly well, though the attachment evolved.
I also made a slide hammer to pull the metal tabs a bit by hand. Pic to follow.
After about 6 hours (of butt-kicking) I had this:
I can tell that I am progressing, but very very slowly. I could not get the edge where I wanted it to be, I'm within about 3/32 to 1/8" - good enough for kitty hair in my world. Still not falling love with collision repair.