have you seen this one?
http://forums.azbilliards.com/showthread.php?t=255599&highlight=schon+radial
*edit- sorry just realized you wanted wrapless
You are looking for a rare cue. I have seen a few pre R series cues and I think you could get that in the SP series. In 20+ years, I have seen two and one is owned by a friend. Why not call up Schon and order one?
Or talk to Dean on here. He if Schon will do it Dean can probably get it done, and he can probably get it done cheaper than going through anyone else.
His ID is "Deanoc" and specializes in Schon cues.