Buck, Fanatic, et al.,
I can certainly understand being wary of scams. It would have been better if I had started my post with the exact specifications of the equipment, obviously. Due to my own error, I lost the information months ago; I've tried to get the last two holders of the rigs to give me a list, but to no avail. (Personally, I would rather keep mining, except that the current holder has become unreliable and I felt it would be better to sell.)
As for the high asking price, my assumption was that haggling would be automatically part of the method, and done via private message. The figure of 2 BTC was simply an aggressive starting point, based on the realization that there are a lot of jerks out there who would try to publicly poo-poo the hardware and drive down the price, no matter how low I set it. Anybody who acts shocked and appalled over me pointing out that simple fact is just being manipulative.
There were some suggestions as to how I might improve my listing, but I'm unsure how to implement them well. I had originally avoided saying anything like "or best offer" because I didn't want to be obligated to sell to some joker offering only five bucks. Clarification on best practices would be appreciated. Thanks.