I had always planned to make new bonnet tops as the original ones were rather scarred to say the least. I thought it would be relatively simple to use the old ones as a template. However....
I trial fitted the old one last week having cut it in half as the new one is to be hinged in the middle. The fit is absolutely awful. In fact it's so bad I am beginning to wonder if it was for another variation of the car. It is particulary bad at the scuttle end where it is a complete missfit. So, first I am going to have to do some serious fettling fit before I can even consider using it as a template. You can see from the picture just how bad it is....
bonnet1 by
Robin Martin, on Flickr
And, in addition it is also too wide at the scuttle end. You can see the overlap of the two halves in the picture now I have sliced it in half. I will have to take about 10mm out of the width plus the width of the piano hinge. Strangly the other (radiator cowl) end it is the correct width.
bonnet2 by
Robin Martin, on Flickr