I know that on the back roads it can be a pain to have such a large rig, I know when i am planning my trip i call around to most all of the camp grounds on my route and let them know what i have and when i plan to camp there, that way they can have a spot open for me (if they have trees in the way they will find a spot that is accessible. They will also tell me what roads i can use to get in/out of the park.
Melbourne RV