If your build isn't complete here are some changes I'd make to it before considering monitors, these are mostly just to save money or offer better performance to widen your monitor budget.
You could save some money with this build if you swapped out the Power Supply for this EVGA model.
The SSD you have picked isn't as good as the Samsung 850 EVO which is around the same cost, you're looking at a difference of 20% - 30%.
Save a few more dollars on the motherboard and hard drive.
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