This will give you a better idea of how the displays are mounted.  As you can see, they are mounted at a slight inward cant on top of the optics housing.
 


This is the view from the entrance to the simulator cab.  That's me oggling those optics. :)  You can see the flash glare being reflected from the beam-splitters.
 


Welcome to the office. :)
Note that the tiller here is in the CORRECT position as opposed to the one shown in the 737 CPT pages.
 

 Continued...