trunk rust question, how much do i cut out? Options

[i love porsche]

ok, in the rear trunk, at the rear most, behind the dogbone, its pretty decently rusted....now the rear panel isnt rusted, just the trunk floor...my question is can i get by with just cutting out the floor, or do i have to do the whole back section like sir andy..

im not the greatest welder, so id like to stay away from the entire thing, if possible, i dont really wanna compromise the strength of teh chassis

i dont have a pic of the spot, so i will graciously use one of sir andy's (i hope you dont mind)

[Jeroen]

When you cut it out, be careful not to f-up the bracing for the towhook and the rear swaybar mounts
Those are all attached to the bottom of the piece you need to remove