I have this Centurion Prestige road bike that I found in a trash heap when some neighbors moved away. It looks like it's ready for the Tour de France, looks to me like a top of the line model. The shifters, derailuers, brakes, hubs are all Shimano 600, has 700c rims, Look clip pedals. I took a bunch of pictures of it, but I can only upload low quality ones here. Anybody know how much this bike is worth?