Try a similar set up to mine, but have amp on one side and sub on the other:
http://community.webshots.com/photo/32847417/31274771EtGxskywMv Then build a cover to hide or conceal it. I'm in love with your amp selection! Aside from the usual qualities of a/d/s (strong, musical, transparent, efficient, accurate), it has major flexibility all in one chassis. Excellent choice! Had I not gone for the NAK's I'd have bought the a/d/s power!
MArk