I just bought an 04 with 7500 miles. It too has the rust in the filler neck and in fact the gas lock was VERY stuck and I bent the key trying to get it open. Other than that the bike is mint. I would assume a dealer would do a minor service, oil and filter and possibly go through the whole bike, brake fluids, shaft, and whatever "100 pt" inspection they do. I have had more yamahas than I can count and they are very well built bikes, I would not worry about the nuts and bolts of the bike. If its what you want try to make a deal for yourself. I would think $5500 would be doable and its a helluva a lot of bike for that price. I know there "improvements" to the bike over the years, but its fundamentally the same bike and will do most of what the newer bikes do for a fraction of the entry fee. I am very happy with mine.