Shooting so many different films under very special conditions really requires that you have to calibrate your meter settings, metering strategy, and processing for each film. The only way to get assured results is to do a test shoot of actual (or similar) subject matter, process the film, and assess the results. Keep careful and detailed notes of what works and keep doing the same successful routine everytime. I assume B&W and E6 processing facilities are available in Antarctica. Without the expose/process/evaluate sequence you are guessing and your useable yield of photographs may be quite low. No pro or serious amateur photographer would even consider attempting an important and unrepeatable project without every component in the photographic production sequence fully tested in advance. Incidentally the Kodachrome film you are taking has no colour processing possibility at all.
Good luck. May Antarctica be kind to you.