Fly-In race mechanic (1099-NEC)

As a traveling race mechanic, all meals at the race track are paid for by the team while working an event.  When traveling to and from the events, can I deduct any meal purchases (for example, while at the airport, driving to and from the track, etc.)?  Are tools purchased for the job also deductible expenses?  If so, then are there any limits or criteria for those specific purchases?