As a WW1/WW2 combat flight simulator enthusiast and a virtual ace, I expected something more than just a HUD from a topic with such title :(
But even though I'm not into modern stuff (what comes to aviation), I gotta say this looks pretty damn nice.
What are you still going to add to it (if it isn't even 10% done yet)? Im used to only have few gauges and a compass so I don't know much about this kind of HUD stuff