So I'm thinking to buy the laptop mentioned in the title, but to make it cheaper I just wanna start with the one that's got an i5-6300HQ and 8gb of ram, but in the future I might want to upgrade it to an i7-6700HQ and 16gb of ram. I could buy the more expensive one with an i7, but right now I just want to save some money, and I'm wondering if this is possible. Help would be appreciated!