As can be seen here (sorry about the contrast, it was a sunny day) the bottom of the wing and the top gutter has been destroyed by rust.
A previous repair (not by me!) was the bottom of the spare wheel bay was replaced and riveted in place. It did not take long to remove.
With the old panel cut off, the remaining parts of it were grinded out.
Cutting the door post for realignment.
Welding the door post in place.
The new panel in place. It was not simple to fit but after much fiddling it was ok.
All the welding needs tidying up but the panel is in place and I have another shopping list of parts to replace!