Per the dxf files and the build guide the MIPS panel is 1515 x 418. After attaching to the support box that leaves around 16 inches top to bottom within the frame...From the bottom of the frame where it calls to rest the monitor at to the top of the window cut out is around 9 1/2 inches. All my 18 or 21 inch monitors are 11.5 and 12.7 inches tall without bezels.
Is 418 mm tall correct?
Cheers

So they make 19 inch monitors that are 16.9 inches wide and 9.2 inches tall. They are older VGA. All mine are newer hdmi ones but 11 inches tall which is too big. So I'll have to invest $300 to get 3 older monitors :-(