sackings

I gonna bid a 1998 GS 400 from a auction. It has 170k with some scratches on the side door and there is a damage on the left hand side of the rear bumper. According to this information, does it still worth $9000-10000??? (The Blue Book price is about $12000 in private party value) P.S. Although it's a highway mileage, I'm worried about the engine will broke down soon after I get it for just a few months (or a few weeks). :(