Burson is indeed more open with larger sites than the actual state park (I think it is loop B that is the RV portion). I don't know that I would want to drive a MH back and forth much, although you certainly could, to get to the beach, restaurant, etc. Since a car is not an option, do you have bikes? There is a bike trail all the way around the lake. Although it can be steep in some places, the stretch between Burson and the main park parallels the lake shore, so it doesn't change grade much and is usually well maintained, wide and graveled. If you're up to it, a bike ride between the two would be a good choice.
Best of luck!
