Any Road Trips?

yup, 3 kids and the wife. 18,13 and 4. 18 will share some driving for sure.
Oh man. What could go wrong? Well, good luck and safe travels. Personally? I would fly with the wife. And Fed ex the kids to your destination. But that's me, after the last time I took the clan on a road trip. And that was only half the distance you described.