Wow. Fun. I've made the drive to Omaha, Nebraska three times and its certainly entertaining.
Are you driving there for just the time of the ride? or are you staying longer to visit a family too?
Right now my plans are to drive just for the ride, catch a charter bus back to the start, and head for home. I have friends in eastern Iowa, but don't know if I'll be able to hook up. If I do, it will only be for a day. (They live in Burlington). Are you riding?