I cut out the corner section which had a hole through it.
I transfered this to the small piece I had and welded it in place.
Small bit of filler needed, not much.
I next attempted to get rid of the rusty corner section.
A plate was cut to fit from an old viva rear panel I happen to have laying around...like you do!
This was then ground down.
Now I could work on the inside. I only had this part from the other car so that went in first. Next I made a new inner panel as I had done on the other side.
This came out okay. Look at the welding. Eat your heart out spot!
Then the edges were bent in a vice and holes drilled for the plug welds.