Interesting. I was mis-quoted. Again.
There is no way to know if this one was the only one built in this color combination, so it is the only one currently known, not the "only one built".
The car was ordered by Mr. Norms, but it is not a "special order" car, it was just "ordered".
I also have nothing to with SIAC, I was never a member. I do have some of their old records, and I did send Jim the ones for this car, but SIAC has been defunct since the mid-nineties or so.
My MCG has not made it here yet, so thanks for posting the scans.
Barry