I'm "the guy" from Central VA. If you're going to Williamsburg, will you be passing through close to Lynchburg or Richmond? I wouldn't mind helping to manage the cache, do maintenance, etc. But Williamsburg is near the East Coast, a several-hour drive for me. (I'm on the outskirts of Lynchburg.) Richmond is the state capital, more in the center of the state, and would only take me a little over an hour to get to. If you're looking for good history, Appomattox may be worth considering too, and is even closer.
Virginia map
It's your cache, so it's up to you. Just wanted to add my .02 in case you may need a local to help with maintenance in the future.
Happy 4th!!
---Agent Scully
(Tammy )