I'd like to share that I was able to flash Kangvip_Mate10 Mate10Pro_127 custom firmware to my Mate 10 Porsche Design 256gb internal memory-build BLA-L29 220.127.116.11(C721). Note: Google apps is deleted, but you may install it manually.
Phone must have unlock bootloader, enable developer options-USB debugging, put phone in fastboot mode, check if your pc recognize it and then just run the run.bat. On first screen hit enter, then choose 1 and hit enter. When process is finished screen will become green, hit enter again and phone reboots. It will reboot again because of supersu. Everything done(thanks to coredown).
Rom Link(thanks to mexxxico): https://mega.nz/#F!7BMEGTYT!2M60SBuhz0Th7mwNWG6hQw
Optional: you may install rootexplorer.apk to delete chinese apps.
Note: Do it at your own risk, I am not responsible what might happen in your expensive phone.