How about a lightweight 6x9 view, such as the Arca-Swiss or the Linhof. I know this is expensive, but with the money you're spending on this trip, maybe it's worth it. Everything's smaller and lighter with 6x9, the lenses, the camera takes up less room, you don't need as hefty a tripod, film is more convenient and more easily changed, etc. And, you can still come away with some great photos.
Bookmarks