Did some reading on this forum and found some Chattel Sources recommended by Gordon and Dien and others. Just pasting the links here so I don't forget them, and maybe they help others too.

Thanks everyone!

https://www.artfire.com
http://www.policeauctions.com
http://www.seizedpropertyauctions.com
http://www.tradeaway.com
http://www.sowpub.com/forum/showthread.php?p=35813
http://www.sowpub.com/forum/showthread.php?p=37241
http://www.sowpub.com/forum/showthread.php?p=37552