68 gts whats it worth?

I HAVE BEEN OFFERED A WHAT I THINK IS A PRETTY RARE CAR TO POSSIBLY BUY. IT IS A 68 383 BB DART. IT HAS BEEN A RACE CAR ITS WHOLE LIFE BUT WAS NEVER CUT UP.IT IS LIGHT BLUE WITH WHITE INTERIOR,CONSOLE AUTO.HAS ALL DOCS AND FENDER TAG AS WELL.THERE IS NO MOTOR JUST TRANS. BODY IS RUST FREE TOO.WHAT ARE THESE CARS WORTH IN TODAYS MARKET? I KNOW ITS SOFT BUT THIS IS A GREAT COLOR/BB DART. ANY INFO FROM THE FABO MEMBERS WOULD BE GREATLY APPRECIATED. THANKS:banghead: