Picked up a couple of 20L's with stand and hood today for $30 altogether. Needs some cleaning, but other then that everything looks to be in good shape.
Yeah, the previous owner apparently put a hella lot of aquarium salt in there so most of it is salt deposits. Used to house cichlids and a dragon goby.
Come on for the price you paid for them + stand + hood, i dont think you will mind the cleaning process.. just while you are cleaning drool over the ideas of what will go into those tanks.