Just for you, we tried it...
...and can report that the screen was perfectly visible through the visor in a dark room.
Afraid that the force of the Oxy / Airmix supply is generally down to the pressure difference between the cylinder and the cabin, and the regulator supplies a different overpressure at different altitudes, so you couldn't really recreate it accurately. To be honest I'd say that, er, keeping your body supplied with oxygen is possibly more important than trying to recreate the aircraft in that much detail ;-)
Alternatively, you could use the money to pay for some flying lessons instead... ;-)
Dave