My brother’s dream to become a cyclist!! (And mine!)

Hi guys! I am a 13 year old student currently studying and my brothers birthday is gonna come soon. What he wishes the most is to have a Trek mountain bike. Now he is 10 years old, I have never been a great brother to him so I really want him to have an extremely fruitful and memorial upcoming birthday. Well, my target is 10K because I myself also wants to be a downhill rider. If 10K to you guys is a lot, don't worry as extra money donated will be sent to SPCA because I love animals and i think they deserve a better life. Every little counts! Thanks!!!