Three of us from the NYCTaper crew will be at this show as well, running (I am sure) a variety of gear. I'm sure at minimum we can find you some clamp space if needed
It actually wasn't even clear to me that the show was outdoors, but if it is, I will probably run either my Schoeps or AKG 414 omnis on a 3ft space bar, with either a single directional mic or cardiod pair in the center.
I'd think your plan to do the 80s-style thing with the Naks would sound good, assuming you've got good windscreens. Or, the CA-14 omnis at a nice split will probably sound good as well, again with the right windscreens.
FWIW, we ran a similar whole mess of gear at the recent Central Park shows. One night I ran space DPA 4061 omnis and Dan ran KM150+DPA 4021. Dan's pull is here:
http://www.nyctaper.com/?p=7322 (BTW, the sound that night was pretty bad- not because of Stan, but because he was forced to use weirdly low volume). Compared to Dan's pull I was pretty happy with the 4061s; I might say there were some facets of it that I liked better, some I liked less.
Anyway, hope to see you at the show!