i legit did this in an hour ( filler upload )
update: added all english (uppercase and lowercase) letters
normal letters: ACEFGHIJLOPSUZabcdefghijlnopqrstuyz
compromised letters: KMVWXkmvwx
uppercase letters that look like lowercase: BDNQRTY
Based on lettering used for LCD information displays in the 1980s and 1990s.