It's not tough.
Like any new thing it takes a bit of thought and practice.
With E6 I have simply used Kodak's directions and a water bath.
E6 is actually what I tried first when I came back to film and I was successful on the very first attempt.
The biggest lesson I learned was that film developing isn't a pass/fail process. Very reasonable results can be had if you just get good and close.
I simply used a float through temp regime. Started at say 104 and finished at about 96.
Experience (and better tools) will allow you over time to get closer to optimum and be more consistent.
Practice a bit before your trip and you'll probably do just fine.