I’m up for April 9. I got to see a game from a box reserved by CMU several years ago, and it was awesome, I definitely like that idea also.
May 21 is a possibility also. For me, May 7 and and June 18 are both out (BFNE and BWC, respectively).
For the group, I would suggest that July 16 is out, unless it’s a night game. That’s the BrickFest Live weekend. If we have enough people to get a box for the game then we have enough people to do a big display at BFL, and I would think that it would be a no-brainer that that would take priority.