Honestly in this neck of the woods, late August is not good as kids are just going back to school in much of Virginia... I would recommend mid to late Sept. and maybe you might be able to cash in on some back to school field trips... and PiP is still far off enough that it shouldn't be a conflict.
And hangings or not, (The Archangel truly does sooo much more than just that), I'll be there with crewe members, hell tis right in my back yard and will be the shortest event traveling time I have ever done...snigger.