I got it done yesterday. Final result is pictured down below. For my taste the display could be a bit more black, instead of the blueish black, but it’s fine. Looking at at it in real life, it doesn’t look as blue as it does in the picture above.
Also I had to mask the frame of the LCD with tape, as the light did shine through the white portion of the front panel. No big deal.
I still want to experiment with different color filters, mainly a red one. Should make the background more black, and inverted black/red might look cool. But maybe it’ll get too dark overall. I will see.
Btw. I didn’t change the display because I hated the red, but mainly because I hated the poor contrast.
Contrast and sharpness of the new display are a lot better, so it was worth it.