I'm thinking about selling my Raleigh Prestige. It has a warranty-replaced frame so the frame is an '03 Raleigh Prestige but the components are Shimano 600 Ultegra (6400 series) from a '97 Raleigh R700. I have a 105 groupset (5500 series) in my parts bin. Do you think the Raleigh would be a better sell with the 600 components or the 105? The 600 is 8-speed, the 105 is 9-speed. The 600 is higher end but the 105 is newer (and the correct generation for the frame). Both are in good working condition.