@Azrayen
I dont think they are, if its possible to make an HUD in this way I think we would have to settle with heading, altitude information, maybe waypoints also. for gun sights and such it may be possible to fix an static sight like on the Su-25 but it probably wont work to make a dynamic sight like on the SU-27.
As someone said earlier in this thread i think its all about trial and error. This game is the mother of bitches to mod, so with some patience and after a couple of brain hemorrhages i think we might ghet there in the end. If we are lucky. Even if we only cen find the size solution for analouge cockpits then that is a great thing :). Like for a certain alphajet ;)