The answer to your question depends on the form of transportation that you would be using in Asia and how long before you go on your trip. If weight is not an issue and you have time to practice before you go on the trip, you can buy a minimal honing setup, probably a barber hone and keep your razors sharp that way. Pastes would work too. I personally use diamond spray which is a killer. Finally, the most sensible suggestion that I can make is to reach a compromise and take a DE for your trip. This would reduce the amount of stuff that you need to take and would guarantee you with sharp blades for the duration of your trip. If a good shave is important for you, remember to take beard prep supplies, styptic stick, after shave, etc... And if you are going to be in the jungle, make sure not embark in this adventure without a mirror and a a couple of towels. There are other things that may be useful. Recently another guy posted a shaving setup that he was going to use while backpacking in Asia.

Al raz.