Should I or should I not add a PS2 to my flightsim?

OK, I am debating whether I should put a PS2 in my "cockpit" I am currently running a FS9 3 monitor setup, 1 DVI(Outside), 1 VGA(panel) , and a 4" s-video tft tv(GPS). I mainly like longhaul flights, but you know how boring those can get while on autopilot. So, I am planning to adapt the VGA monitor to run on the PS2 (Component video) while I go press W so the outside view will have some gauges, and to see if I crash into a mountain or something (I fly with a Mooney in unlimited fuel mode, as I havent learned how to fly commercial flights yet) The 4" monitor will still be on GPS, while the panel, will be switched to gaming mode. I will use a KVM box so my mouse and keyboard will work for the ps2. Is this a good idea?