You're forgeting one thing, SimonM
If you endure take SimonM's things to remember:
You will have the trip of a lifetime. :)
Just do good research beforehand
Know where you're going and who might be skilled there. Know which ones might be open to foreigners. That's one reason why Shaolin and Wudang are interesting because they they are not only accessible, they are downright welcoming. Some are too welcoming in fact, and that's where tourists get in trouble.
beiquan: I want to qualify something I said in response to your comment above. I totally hear you about "the more accessible something is to foreigners, the less likely it is legit." We strive to access those hard-to-find folk masters too, but they are, well, hard-to-find. Many of them avoid the spotlight and who are we to disregard such wishes? Such is the nature of martial arts publishing.
Check out some archive threads
Here's on on the Internal forum.
Here's another on the training forum.
There are probably more, but you'd have to really dig through the archives to find them.
Have a great trip.