The 980 Ti should run it just fine, but you can always look up reviews of that specific card model.
Be-careful when buying from NCIX, read their returns policy very well, sometimes the policy is on a different page than the global return policy. Long story, bad experience, which is why I buy almost everything from Amazon or Newegg or when I can I support a local store near me.
1 thing I always like to do when building a PC is having 1 SSD for windows and all the 'office' stuff like documents, and what not.
I get a 2nd SSD drive for all my games.
That way if I need to wipe and reinstall windows for any reason I don't loose all my games or vice-versa with wiping the game drive.