Can be greatly improved.
Ditch the SSD, grab 16GB of RAM and a 1080 instead.
I feel 1080p 144hz is more suitable, as even my 1080 struggles to get 60fps at 1440p in some titles at high. PCPartPicker part list / Price breakdown by merchant
You don't need the thermal paste, your cooler comes with some already.
Don't get a single stick of ram, get a dual stick SET (not two individual pieces)
Get the non-elite case and get a better PSU.
You can also just use the stock CPU cooler (it comes with the CPU) to save a few bucks as well if you're not going to overclock. (which you probably won't being a newbie)
Can be greatly improved.
Ditch the SSD, grab 16GB of RAM and a 1080 instead.
I feel 1080p 144hz is more suitable, as even my 1080 struggles to get 60fps at 1440p in some titles at high. PCPartPicker part list / Price breakdown by merchant