Skullworks the Elstom monitor circuit boards are quite easy to fix, if that's what the problem is. If you want me to fix them let me know.
For an LCD conversion:
The TEXT CRT is a CGA resolution monitor.
The GRAPHICS CRT is an EGA resolution monitor.
MDA/CGA/EGA LCD Monitors sells an off the shelf compatible LCD.
I did not buy from them. I checked the specs and the LCD looks like it will work.