Thanks Joel. I'll send you some information I received from the people who purchased from Mr Puckett and the legal issues involved.
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I had to join the metalwork forum to see the photos of your build but it was well worth it. An amazing effort and there were lots of issues relevant to my build - in particular, you've got me panicking about insulation - thanks! It seem that even with your relatively freer self-construction requirements you still have plenty of hoops the jump through.
I would be very keen to know of a technique for the nose trim. I had one go at making it in aluminium but was disappointed with the outcome and shelved it. In particular, I had trouble trying to create the slight curve in the horizontal plane. The workshop I used (TAFE) has dropped the course so I now don't have access the shrinkers and stretchers.
I trust the Cobra fraternity will bear with us on this.