Many people ride across the United States for Charity or go on long bike rides and get pledges, of course none of this is easy and first you need to get a bike. It makes sense to save money and by a used bike on E-Bay or from Craig’s List, yet still you must realize that the bike has to make it the whole way or everyone loses.
If you buy a new bike that is just money that would have gone to charity, thus slightly defeating the purpose and if you buy a new bike it will be somewhat trashed by the time you ride it that far. Below is a sample ad you can use to create your own “Bike Wanted Ad” to solicit sellers: