I have For Sale an SBIG Model AO-8 Adaptive Optics unit. I have had this unit since brand new and it has been attached to the telescope probably about a dozen times, it is in perfect working condition.
This unit is suitable for any ST series SBIG cameras having the 12C-AUX port.
More information here:
http://www.sbig.com/sbwhtmls/ao8.htm
Asking $700.00AU FIRM including postage anywhere in Australia.
Comes with the original box, Manual, Hex keys and additional bolts.
Cheers