So pretty much I'm buying a new bike. I have the option to get a scott addict full of accessories from a friend for €1500, or for €900 I can buy a kubota bike size 54. I'm 176cm tall but I'm 15 so I think I will grow taller. I've read bike shops can adjust the stem length and increase tje spacers to adapt got your height to frame dis level. What do you think i should buy, the scott addict size 52 or kubota 54cm?