We are a family of 12 going from Lihue airport to Princeville for a week. Does anyone have an economical recommendation on how to get there and back? We could rent cars, but don't need them for the week, and would need two - a huge expense. Shuttle services, likewise, would charge over $1,000 to and from, for our group. Has anyone taken the bus? How do think that would work for a family with small children??