It can be great place to have a rally if the weather is right. I've held two rallies for this event. One at the festival site (a few years ago) and another down the road at a campground (about 7 years ago). The farm manager who's a friend of mine will put you down at the back gate next to his house. Flat field, a few large trees for shade.
I live three minutes down the road from Long Branch and pass it twice a day taking my daughter to school. Though I'll be flying that weekend, it will not be at the festival but down the road a piece.