Thats with everything on Ultra settings. Put it at the settings it would most likely be running at on the Scorpio and it will run 4K@30fps no problem with room to spare.
Interesting that it only runs RotTR at an average of 44.2fps on high at 1440p:
In any case, $565.49 + shipping for the different components + Controller + mouse + KB + OS + labour. We're looking at $750 to $800.