Used (normal wear), Ready to go as is tank stand hood light filter sand gravel includ well covers a 1000 spent would like 500 . Make an offer!;
offerup.com
How'd they spend $1000 on a 40g tank, stand, gravel, 2 HOB, and a heater?? $500 is insane, when you can walk into any of the big stores and buy a brand new set up of that size and larger for less.
Don't give up. I gave away a fairly new 40g, 20g, a bunch of equipment and fish on CL. I normally would not give away a pet (dangerous), but I vetted them and knew they'd go to a great home. The guy was super cool and had some nice tanks. They were adopted fish and many of them - I couldn't house that many goldfish long term, though I tried. The ones I kept are in an indoor pond now and doing great, as well.