I would like to sell an EBI Bone Growth Stimulator. Any suggestions?

I had to wear an EBI Bone Growth Stimulator after I had two fusions done on my back last September. I paid $2500.00 for the unit which comes in a container much like a laptop computer. There is no outlet to sell this equipment. Does anyone know where I can sell or donate this equipment?I would like to sell an EBI Bone Growth Stimulator. Any suggestions?
If you donate it and its worth more than your standard deduction take it off as charity. But, you might have better luck contacting your doctor's office take a picture and see if they will put it on the board. Also, put a free ad in the newspaper. You could take out a larger ad but you'd have to pay for it.
Perhaps Craiglist or ebay would be an option. Barring that, perhaps you could post the availablilty on a site that caters to folks who might have this specific need.
Best of luck to you,
~M~