Looks like the roof skin is gone and the rear panels sanded off.
The three metal bars in the picture are not stock and will be removed.
The rear has been sanded and all filler removed.
The front clip will be removed and then the car will be taken to a blaster who will clean off all of the undercoating as well as blast the roof rust away. After blasting, work will begin on the lower rockers and the upper A-pillars.