Not much to show but a lot of time spent still.
Bonnet skin is complete! Laid it next to my spare stock one to give you an idea of proportions and size change. I kept the best bonnet to start with in case I needed pieces from it if I failed in making the skin. Might sell the original one now or think it would make a good awning over my garage side door too!
I cleaned the metal surface with a finer strip disc so I could better check the surface for imperfections.
This is about as far as I can go until the supports go in to hold its final shape. I don't have any 'loose' areas as is as tighten them up with the shrinking disc even if the shape was already correct.