I was able to find the ID of the buyer and just wrote him a message thru ebay, explaining what he had purchased. I also included a url link to a supersize image of an authentic poster sold by Bruce, as well.
I told him that his poster/auction had come up in discussion on this forum and that it was a worthless reproduction. I also told the buyer that several messages had been sent to the seller from various members explaining that he had sold a cheap repro and that none of us had gotten any kind of response.
Lastly, I said that he needs to demand his money back.
I hope this buyer writes me back. I will keep the board updated.
If any others also want to write this buyer, and also alert him to the fact that he bought a worthless repro, (strength/validity in numbers) his info is here:
http://myworld.ebay.com/porschealolo79