Hi Bob, thanks for your kind comments. I don't know how to enter up into the Technical Manual, if enough people thought it was ok I guess I could, bit diffident about it though. With regards to your pertinent comment regarding shimming the outer bracket because of the pop rivets, I peened the heads down fairly flush, and there was no remainder of the rod sticking out proud and after I had pulled the nuts up on the 6mm bolts prior to fitting the pop rivets it seemed to flatten things out under the outer bracket. Probably not precision engineering but I was happy with the result. As an earlier post said the hinge tends to cover the slot I had to make on the side so at this point I have left it.
One thing I would reiterate, it is very important to tie the back bracket arrangment together before you drill the original rivets out, or as ii found, you have to chase the bits around the inside of the hood/bonnet!