I'm nowhere near your state, but I approve wholly of this endeavor! And wish I could come, because I totally would.

One question, which may or may not be relevant depending on the field in question: are there neighbors who might be reasonably expected to complain about dance music lasting well into the night? If so, you might want to take that into account, in terms of speaker size and hours involved.

Also, I assume this isn't the kind of field one needs to reserve in advance for stuff like that, but it might be worth double-checking.