will you have a toad? will you be taking that motorhome around to all of the various overlooks? I think most of them will accommodate the MH but check google world before you try it.
If you have/use a toad the parking lots at the overlooks can be quite a walk from the actual overlook. If you pull into a lot and there is an old rusty beat up pickup sitting there you may want to leave one person in the toad/rv while the other one goes down to the overlook. when I got back to my car there was paint chipped off the door pillar where somebody had tried to break in to it with a slim jim. don't know about security for the motorhome.
yes, been there, done that.
bumpy