Do you have reservations over July 4th week? How far is one campsite from the next since we only have a tent?

There is tent camping in the back of the grounds. The RV spots are carrying sizes. Some that fit small RVs, to large busses with pullouts. You should call them to see what the availability is. It fills up fast

I'm not sure exactly I've only been in the cafe, but from observation they are fairly close looks like standard RV parking slots.