Thanks!
I think Colt regular light - suits well. There are some subtle differences but I think, they don't matter that much.
I'm also planning an upgrade module for display, since old one has low brightness and I don't like red color that much anyways.
So I'll make a drop-in module, but have not decided what to do - either equip it with high brightness, modern 7 segment LEDs, or use some OLED display, which will be also capable of displaying say "Out of range" instead of flashing 0000s.