Okka Ltd. resale pricing - help, please!

[Other Steve]

Yes, yes, I know -- this question belongs in the Classifieds. But since I posted it there more than a week ago and no one has responded, I figured I'd venture to ask it here, since I'm sure lots of people here don't regularly check in over there. Hopefully, I'll get a quick answer and the thread will go away just as quickly.

Basically, I've got two of the ultra-limited Okka Disc releases that I would be interested in reselling to an interested party. And there's actually an interested party already knocking at the door! But I have no idea what these go for secondhand -- I've never seen them on eBay, and, as I said, no one's been able to answer me in the Classifieds forum.

The two discs in question are DKV Live and Mats Gustafsson/Hamid Drake For Don Cherry. Each is limited to 600 copies and long ago sold out. Any idea? PM responses are fine.