Cut and weld or pull, honestly I don't see anything a competent body shop couldn't straighten out. And if they can't they'll tell you who can.
A lot of us have had or still have to cut a ton of body rot out and weld in new sheet metal. On my truck, both inner and outter cowls, toe board and front half of the floor along with one support all have to be replaced. That doesn't include removable panels like fenders, splash aprons, running boards, bed walls, etc. I got a buddy with a '60 Impala that has no floor in the back and holes in the trunk the spare tire could fall thru. It's all part of owning an old vehicle.
