Hi,
Ha ha, that is a real stallion you got hold of there 
That will certainly do the job.
Seriously that is of cause a very nice computer both with a powerful cpu and a top of the line graphics card. I hope you will run Windows 10 Pro or Enterprise. The cameras itself will be no problems, but the challenge will be at which frame rate you will use for decoding and recording.
Another thing to look for is the configuration of the Nvidia card. In one system I have an older Nvidia Quadro and it can be configured/optimized for different applications. Check if streaming in one of the configurations. It made a difference in my system.
I am really looking forward to read more about this. You should also have the latest version of Netcam Studio not released yet for even better performance…
Good luck and thanks a lot for sharing!
Henrik