Thanks for the info everyone.
Patrick, I think that's a great idea. I'd sport the name tag for sure. It would be cool to be able to spot the PA guys, especially if it's a big event. I'm bringing a buddy with me who likes primitive weapons and archery and takes great interest in it, but doesn't build his equipment just yet. He thinks it sounds like a 'must go' event, so I'm happy to bring him along. We'd love to pitch the tent near some PA folks.
As far as hydrating and heat goes, I've lived roughly 3 hours from Marshall my whole life, so I'm acclimated to the 100 degrees and 100% humidity
(hoping it won't be quite that bad)
When it gets a little closer I'll get some more info on good camping spots. I'll bring plenty of fire-water and food to share. Look forward to meeting you all.