Hi Trevor,
I got this 2nd hand few months ago, I am not sure how how old the camera is, but the condition is good. I have used it for 5 times, and it works fine and cooling is not an issue.
The image is a bit soft for my refractor (360mm + 0.8 reducer ), but it will work with long focal length.
https://astronomy.tools/calculators/ccd_suitability
Cheers,
Steven