Default [Q] Hong Kong stock

Hi, I have just bought a HTC one m8 off ebay, only problem is that it has come shipped with the chinese version of android os. I was hoping that it would be possible for me to change it to an official UK stock firmware (so I don't have all the chinese apps)?

Checked on and I am unsure about the carrier as my phone is unlocked and assume I must use the HTC (carrier) EU (region) CRC?

Any help would be really appreciated