A bit more progress.
Before welding in the middle and rear inner sill, I knew the front inner sill needed replacing. So time to remove the outer bodywork.
Plenty of evidence of tin worm
Removing the inner sill showed that other parts of the body needed work. First I sorted the bottom of the pillar
Rather than just try and sort the holes, I replaced a decent strip of metal. First I cleaned it up and cut to width
Shaped it. What you can see here was done in a vice and has as many edges as a 50p piece. I smoothed it around a piece of pipe
Welded and ground
and protected with primer. I will add some seam sealer to the inner radius.
At the front, there were similar issues
After some thinking, fabrication, welding and grinding
Next step is to work out how to repair the metal on the wheel arch tub so that the inner sill can be fitted. There is plenty of rust there.
