I will indeed be out of town on the 12th, but I have gotten Stephen Schroeder to step up and run the event in my stead. I tried to see about pushing it back a week, but Valhalla's will be full, and won't have room for the extra players expected.
As for Chunin events, they are intended to be held 2-3 times per year for each state. There is no real limit on how often a venue can host, but events will be divided up to qualified venues that apply.
ps. Much as I'd like to take you up on the offer, I have to work on Friday nights. ::sigh::