I have offered my Apple ][gs for sale on ebay. It is in great shape and comes with 3.5" disk drive, 5.25" disk drive, Gravis joystick, Compact Flash disk card with 1GB CF card installed, Imagewriter ][ and Applecolor monitor. I have installed GSOS 6 on the CF card and I've also updated the memory with a 4MB card for a total of 5MB. I am also including a working keyboard and mouse. This is a ROM03 model I believe.
More information can be found here: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=140183046108&ssPageName=STRK:MESE:IT&ih=004