Peter, Thanks for the advise. I ended up getting factory inner and outer sills from the Solihull PC who were very helpful. When the body shop got the outers off though, I'm glad to say the inners were not needed. (I was working on the principle of better to have the parts available just in case.) A couple of sections the wing bottoms were not very good though, so I had them cut out and new sections made up. Even in base metal they look to have made a good job of this, so I'm very optimistic of the final appearance. With the structural work now complete, the glass etc is now being removed ready for paint. I'm hoping it will be ready for Silverstone and have even booked the tickets in anticipation. If it is, I hope to meet some of the Club members there and have a good look at other 944S2s.