Get minimum 256gb ssd & 16gb ram.
You may not need the whole 16gb of ram, however it doesn't hurt to have more. A lot of these high-end games don't require more than 8, but if available, they will still allocate more memory, thus enhancing your gameplay. Considering the rest of the specs, I highly recommend you do upgrade RAM, as it could otherwise very well actually block you from reaching maximum efficiency.
The ssd is fairly obvious - you've never played high-end games. You'll use all that space up very fast, most high-end games take 50-100gb of space; you'll then at least be able to have 2-3 high-end games before needing to erase some. 512 of course is an even better choice - and trust me when I say it; You will use that space up once you do have it.