Prob not that much, under 100 most likely, depends on the amount of work on it and also if there are any water stains, fleabites, chips, nicks etc.
Here's some pics the second one is a pic of the bottom it says original kaos http://tinypic.com/view.php?pic=i3hy74&s=8 http://tinypic.com/view.php?pic=rsuc2b&s=8#.U_I48nm9Kc0