Marvin:
If you have any Sense of Adventure, you might consider using
electrical distribution substation switchgear for the logic. It
would take up a little more space (maybe two acres) and use more
power, but... think of the kewl noise it would make!
The control panel would be interesting, too.. if you continued the
genre of the 'active logic'.
Cheers
C. P. Steinmetz