No same side.
I took the remainder of the box plate off and filler etc came off along with it.
Underneath there were 3 layers of patches, some just came away in my hand.
I have all the sill sections, boxing panel,rear quarter panel and lower 'A' post ready to go in.
I'm making up sections for the floor as it only seems to be the outer edges that have rotted away.
I need to put some strength back into the corner so nothing moves later when I'm lining up the door etc.
PS. The patches that you can see are from the previous bodges they will be coming off and new sections made.
While we're busy making plans, life gets in the way.