Waiting for steals is not something I have the patience for, but neither do I want to pay way too much just because all that is currently available is from people who want to get their money back (or most of it).
I would post a WTB ad if possible, and just say what you are expecting and for how much. Maybe give a couple of options, such as price X for hooded light, tank and stand only, or maybe price Y if there is a filter and heater thrown in also.