How to setup up a 2-PC Setup for FSX and Project Magenta Suite setup

Just need your opinion of setting up a 2 PC combination of a Fast PC for FSX or P3D Visuals and a Mid to Hi end PC with dual Display output cards for my Project Magenta Boeing and Airbus Suite that I have. I currently am running 4 PC's for Project Magenta with another PC for my FS9 Visuals. I want to upgrade to FSX or P3D for the visuals , hence a high end PC for it. I want to reduce the number of PC's for the Project Magenta Software that I have thus reducing the amount of "mess" at the back of my homebuilt cockpit. Recommendations for a PC for PM and how to setup the EICAS, CDU, PFD/ND ? See Pictures attached

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