see if you can properly calibrate bars to the nec monitor with the blue only switch.
if you can do that and the contrast pluge it “might” work.
if not, look into getting a sony pvm14L5 crt monitor, they regularly show up on the cow classifieds and ebay for less than $ 1,000 and work very well.
I assume you have a matrox or blackmagic or aja video output card to hook it up to.