John, I hope you get it as well, To me the UOP Shadow was one of the coolest Can-Am cars, apart from the McLarens and Porsche 917-30.
I have seen a super kit composed of resin and photo etched pieces, but that was out of my price range. This auction was in my eBay watch list, but I will delete it now that I know you are considering it. Good luck, and I too am curious as to the contents / quality of the kit.