Nothing to save here. The floor has been patch a lot with rivits and sheet of metal. I can't repair by patch nothing is good on the floor
I made my self a small support instead of supporting in the corner I have inserted wood dowels. I know wood is not metal but this i what i can affort for now.
I brace the car in front and in the back of the doors. Is that enough or i should brace from side to side
Any other things should be done before i remove the left over from the floor?