Anyway I gotta go out so gona make this short only 3 pictures.
Here is the rust in the rear right wheel arch getting cut out. Behind it the rear left trunk floor panel connects to it (at the line where it's rusted out). and also a brace that connects the boot flow too the chasis rail (can see this brace in one of the next pictures.)
Ok this is the same area with the rusted metal cut out and the face of the rear brace cleaned up. as you can see it connects the area too the chasis rail. Unfortunatly water has been sitting in this but its ok. It'll get wire brushed. treated, and then painted with cold galv to stop it rusting anymore. (once again the bottom of the car will be getting coated with 3m Schultz (ruburised / bitchemised underbody car sealer)
This is a picture showing the ammount of affected metal removed so far from the rear right area. LOTS.