How much is a fuji newest 3.0 worth?

Its mechanically perfect with a few light marks due to leaning it on the lamp post at work so i could lock it. It has an upgraded 105 rear derailleur, forte aero bars, forte GT2 road tires and other than that, its stock. I was wanting about $600 for it but i dont think ill get it so whats the most I can get? Or better yet, what can i ask in the ad? $600 then say i can knock off $50? It has maybe 250 miles on it. its an 07 bought in 08 for $630. $60 for the 105, $20 for the tires, $55 for the aero bars. so $765 into it. im in to mtb and really have no use for it.