Hodaka/Bonanza Pipe
I was in your shoes for the past 3 years, and I can tell you that the chances of finding one used are slim and none. Dave Miller is going to be your best, if not only bet for a pipe. As I found out, no one is willing to let go of these. I found a couple of guys that had more than one that they weren't even using, and they wouldn't sell me one. Your looking at roughly $469.00. I know that's crazy expensive, but what else can ya do? Though I can say that Dave's pipes are really nice!
I should ad: there is one other guy that I know of that makes these pipes, but I can't remember his name. Let me look through some e-mails and get back to you.