just some feedback, at discord they were discussing the same question and one person posted the link to the following
website that offers quite interesting displays for a quite OK price.
https://www.beetronics.de/15-zoll-monitor-bnc-vga-hdmi"OK price"? More than 320 EUR for a 1024x768 15" monitor?
You have to pay for such monitors something around 10-30 EUR second hand on ebay.
Second hand with run down CCFL backlights usually.