Wayne, there is a fellow that you may know of from the 356 scene, Randall Yow. He "had" a high end selection here in Greensboro, but moved his operation up the road to VIR a couple of years ago. He may have one/some of the 'publicaly available ones" that you're already aware of, or maybe he can assist (as he seems to have "connections"). He had a 906 for sale a few years ago, but I was just a bit short on $ and had to pass

. Hope this helps...
edited:
http://forums.pelicanparts.com/showthread.php?t=276036&highlight=906