Rt 36 across Missouri is a good road.Mostly 4 lanes and 65mph. There are 2 Missouri State parks, Long Branch and Pershing right next to 36. We stayed at Pershing last year.$19 a night with electric. I haven't traveled all the ways across Kansas on 36,but the portion we did travel was nice. If you have the time, Marysville,Kansas has a Pony Express Home State which is worth visiting if you have the time.Prairy Dog State Park is right at the turn off to I-70.They have a campground with electric and water.