These days I would go with a 1TB SSD, nothing smaller.
Monitor: https://www.amazon.com/dp/B01LW5CGIS/ref=dp_cerb_2 While my current monitors are all ASUS, I have never gone wrong with an LG and it has the best Specs and the best price for an Ultrawide Screen.
I just got a Logitech X56 HOTAS for...