Just an update.
I've consulted with more experienced peers and decided on a new active system. An A&H Mixwizard, DBX Dr260, two KW153s, and four KW181s are sounding right for his place. It's very adequate and he's very happy; if he wants to add more speakers in the future he can easily. This also allows him to set the 260 to mute the PA if the fire alarm goes off, the name of the club is Heat so you never know haha. I told him to consult a qualified contractor for the hanging of any speakers. Thanks for putting that into perspective and thank you for your knowledge.