Torrents blow and their usage for OTAs and via device downloads suck.
We have a tight friendship and connection with 3 mirrors (Celo, Caro and Magentium). They run our infrastructure :)
However you got that OTA from China, don't ever apply it. We change the ROM so much that attempting to apply a Chinese OTA over our ROM will break it, and possibly your phone.
Maybe. We would have to change our build scripts, since they are inserted that level, though without it. Your phone won't work in regards to GPS / location because Baidu maps only have support in China.
btw, roms up.