Upload & Sell: Off
Can't speak for China, but have been to Taiwan a few times. I've posted a bunch of Taiwan images on my blog: http://www.ronscheffler.com/blog/?cat=10 and http://www.ronscheffler.com/blog/?cat=10&paged=2
For my style, I worked with APS-H crop cameras exclusively combined with the 16-35, 50L, 85L and 70-200. For my first trip I took a whole lot more, including the 15FE, TS-E lenses and 135L. I used the zooms the most, but the primes were valuable for low light work or when I wanted the shallower depth of field look. I couldn't imagine not going without the 70-200 (I currently prefer the f/4L IS version due to its great combo of excellent IQ and relatively compact size). I also couldn't imagine being without something in the 20-22mm equivalent focal length range, and if I had to, would take only the two zooms. I did use the TS-Es a bit. The 24 in urban environments, as well as the 45. But the 45 was more useful across a broader range of applications, especially for controlling depth of field along specific planes. But of course, one could get by without either of these. My least used lenses were the 15FE and 135. The 135 because the 70-200 f/4L IS is as good at 135mm, unless one needs f/2. But I had the 85L along, which when working in low light collects 1.3 stops more light, which is huge. And the 135L is difficult to hand hold and get sharp results at marginal shutter speeds whereas the 85 is more forgiving and the 70-200 has IS. But if 135 is the only tele lens you have, then bring it and you'll be fine. I'm not sure it's worth getting a 70-200, but might be worth considering a 1.4x TC, if even one of the off brand ones for those rare times you will need it.