We are trying to plan a family camping trip to Custer South Dakota area and would like any help or suggestions you may be willing to offer. We will have one 29 ft 5th wheel, one 29 ft TT and two tents. 7 adults and 1 child. I have looked at the NP website for there and see that I can get sites with electricity but for full hookups I would need to go to a private campground. We enjoy hiking, fishing and campfires.