I need opinions on the subject of transportation. How would you transport 15 people over nine hours of highway in the most comfortable manner? Previously I have used a large RV, which has been great; however, even the biggest ones can’t take more than 11 people comfortable. I don’t want a typical bus, with rows of seats. What would be perfect would be a rock band style tour bus, but I’m afraid that would be way too expensive for our four day trip. Any other ideas?