I have an alienware r2 for sale with an i7 4710mq, 16gb 1600mhz, m.2 128gb, 1tb sshd, GTX 970m 3gb, 4k touchscreen. Only problem is... the touch screen on these things bump the cost up. I can't find one anywhere with a 4k touchscreen for less than £850. I'm looking for around £800 for mine with the official alienware backpack... £120; like new. And a cooling plate.
guys he is travelling so he will need some batterylife and it need to be lightweight. if you want to go for a macbook thats fine but dont expect any games to run on it smoothly, even league of legends is rather meh on it. if you are also fine sticking to windows try the xiaomi mi pro, its dirt cheap to get and really good batterylife (about 8-10hours if you adjust it properly) and for minor gaming like league of legends it will probably last about 2 hours. you can get it in the eu via gearbest or ebay. just prepare to get a european windows copy (ebay again)