Try asking your team's mentors for advice first
We generally know what we're talking about.
As for sharing buses, right now teams in the MAR area don't know for sure who is going and who is not. Having already asked 341, I can tell you that they will be flying out, not taking a bus.
Also use the search function as there are hundreds of great threads about fundraising from the past.
We will discuss it at our next meeting.