Bill,
I hope you can try to arrange your schedule a little. Tell the wife who's boss

.
Right now, I'm tentatively thinking about Saturday June 7th. That is during a long Club Cranky break, it's early in the summer so that it won't be hot and humid like August. It will also stay light later. It's two weeks from DVSFIII, so it shouldn't interfer with that. My second choice would be later August if June won't work.
I'm going to call Valley Forge Park tomorrow.
Steve