Thanks everyone!
I have been cracking on with the rear section of the NS sill, it's in a pretty bad way and a lot has had to be cut out.
So it's out with the templates!
First to go was this little section
Not a huge amount left here now!
I fitted and tacked in the inner sill repair section so that I could start rebuilding everything back up.
That is now tacked in place, the next job was to repair the jacking point reinforcement section.
Make an outer sill repair section
Fit that then repair the lower lip of the inner sill diaphragm panel. The repair section is plug welded to the inner sill repair section then the outer sill is plug welded at the fold, this closely recreates the original sill structure creating a very rigid box section.
Closed off the wheelarch panel and test fitted the sills before fitting my upper lip repair section.
Refitted the doors to check that everything lined up correctly.
There is some trimming to be done to my repair sections as the sills arent exactly straight, they do have a curve to them.
Mondays jobs are to finish closing in the rear inner wheel arch sections and to start the front of the sill sections. I can't fit the outer sill until I have both wax protected the inner sills and repaired the outer rear wheel arch. I need to ensure the sill and wheel arch align exactly.