Yeah my first thought was it's seriously nice, but do all those switches work in-game?
If they are USB enabled I'm pretty sure they could be programed to work in AH, since AH handles multiple joystick configurations for the controls, but I don't think the game as programmed would send data to the gauges.
My father-in-law was an electrical engineer / director of manufacturing for a simulator company, I have been thinking about picking his brain for a nice homebuilt setup for a WW2 cockpit, maybe even some limited hydraulics tied in to the joystick inputs (looks over shoulder to see if wife is looking) though in my case it will most likely stay a pipe dream.
I agree with RC, the big screen would make a huge difference (pardon the pun) and I was thinking along the lines of setting the screen into the cockpit so the in game gauge display would be in about the right spot when looking forward, (as a compromise to AH) about like this. Even if I never get to build it, it has been a lot of fun working on the idea.
Best of luck to you in your build Reaper!
Blackwulf