Alex, the sub is neat, but I believe once you get invoved in OTSN you will put touring the sub on hold.
Speaking of 505 which I have seen. In Mobile Al. I also went thru a U.S. WW2 sub, can,t remember the name and also the battleship Alabama.
If you ever get in that vicinity make sure you check it out.
While speaking of exibits, toured the DDay museum last November, it was good, but I was just a tad disappointed, just expected a little more.
Gary