Thanks again guys. I took a look at Borg. They don't appear to have much in the way of yagis, our favored option right now (due to low wind-loading), and the parabolic grids, although good, are not much cheaper than the high-end yagis we've been offered.
We might take a stab at modding the sat-tv antennas Uniden donated...anybody have the links for such mods?
The weather station is on Benmore Peak, which is between Twizel and Omarama. It's page is:
http://www.observatory.org.nz/weather/benmore/
I've cheated and put another (test) station on-line in it's place until we can nut out a reliable WiFi link from the summit.