Hi Paul, Not too busy to do what I can to help...
Although, like you, I haven't any photos of this part of the Cordite and have yet to get to the bonnet hinges on the Demonstrator, It so happens that I have what appears to be the remains of the chassis that was used under Gary's demo that was at Stoneleigh. I've taken a couple of photos to show what he did for hinging and hope this helps (both of us). As you can see, it looks like the original brackets do come off and new hinge points welded to the front crossmember. (Full marks Mr T
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