Unless someone knows how to get in touch with Gary Klein.
Steve, the gold-colored substance in the photo is beneath the pink substance. I'm quite sure that the filler is Bondo - has the same texture and consistency.
As to whether the paint is original or not: Underneath a couple coats of spraybomb jobs appears to be a rather thick, quality black paint job which I would assume to be original. No reason why it should not, for this one coat is definitely not from a spray can.
-Kurt
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