This is turning out to be more complicated and drama filled than it needs to be.

Post pictures of the damage. To get this fixed, pull all seats / rug , reinstall driver seat, take to body shop for an estimate.

They will either tell you that they can weld patches over the torn area or that you need to get a piece cut out of another car.

Patching from the interior side then sealing both sides with body seam sealer is the most direct route to repairs. This might take 3 hr including some sort of paint on both sides if they start with a bare interior.

Also, the salvage yard search is car-part.com ( not partS ) others are not the same.