Contact your Regional Director and your Senior Mentor for advice.
For RD:
http://www.usfirst.org/regionalcontact.aspx
For Senior Mentor:
http://www.usfirst.org/community/vol...t.aspx?id=3310
I would also consider the approach of the matching grant. Commit to raising x amount (by team fundraisers-there are tons of examples on these forums) if x company will match.
And it's not just the $5000 registration. Estimates I am hearing now is that teams should be looking at $500-600/per person for travel and hotels and food.
Contact a veteran team in your area for advice.