USA Jr World Championships

Hi My name is Samantha Kingshill, I am 16 years old and competing in my 2nd year as a Pro downhill mountain bike racer.
In my first year competing with other awesome female pros, I earned 3 of 5 podiums in the ProGRT series and placed 2nd overall! This year with any luck I am on track to win the ProGRT national circuit. Last month  at USAC MTB National Championships, I placed 2nd behind World Cup racer Jill Kintner.
Last week I received an amazing invitation to compete in the World Championships in Val di Sole Italy, coming up September 6-11th.  I'm so excited!
This is something I dreamed of since I first started riding a bike.  I would be so proud to represent our country in this race. 
As a junior racer I can't travel alone and I can't imagine going through this experience without my parents, who have supported me so much along the way.  
But I need your help to get there.

Here is the breakdown of the costs we are looking at.

Unfortunately I  have a very small window to book the flights below as they are the cheapest we could find:

Flights from Sacramento to Boston
$1400 (mom dad and myself)
Checked bike bag (Southwest)
$150
Flights to Munich United
$2300
Checked bike bag
$300
Lodging  and Meals (6 days)
$1500
Transportation
$500

Please help with what ever donation you can. My family and I thank you in advance for helping me participate in such an exciting event!