The home page is a little confusing and I would phone to confirm, but they list a number of hours that also includes guided tours beginning at 2p.m. with "Summer Hours" listed as 9a.m. to 4p.m.
Regardless, it looks like your out due to the long distance (unless you decided to do an over niter, which is what I'm thinking)?

I would like to see a minimum 6-8 committed and have three including myself interested so far. I'm just throwing this out as a suggestion and am willing to organize, but as my original post already mentioned, the driving is a big chunk of the day.