We just set up a van to do the sort of thing you're describing. We went with Skycasters for the mobile Direcway/Hughes dish mounted on a '66 Ford Econoline, and then added various goodies on the inside. Skycasters also sells a man-portable satellite unit originally designed for FEMA. That may be just the ticket for your application. One thing to keep in mind is that the satellite downlink is zippy, but the uplink is incredibly slow and the overall latency is terrible. So you'll want to set up on-site proxy servers for any service you plan to use a lot. You'll also need a clear view of the southern sky.
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We just set up a van to do the sort of thing you're describing. We went with Skycasters for the mobile Direcway/Hughes dish mounted on a '66 Ford Econoline, and then added various goodies on the inside. Skycasters also sells a man-portable satellite unit originally designed for FEMA. That may be just the ticket for your application. One thing to keep in mind is that the satellite downlink is zippy, but the uplink is incredibly slow and the overall latency is terrible. So you'll want to set up on-site proxy servers for any service you plan to use a lot. You'll also need a clear view of the southern sky.