I have a font I built with the 80s version (before enemy changed from a rectangle to a diamonds).
https://games.juhlin.com/font/
Let me know if there is any interest from anyone. (I have to dig it up)
The font doesn't do designation but you can overlay type and size to make an infantry division.
I think the font can be downloaded here.
https://games.juhlin.com/font/TOE_Unicode.ttf and you use the alt keys listed on the page above. I think when you type size is does a backspace and overlays it on the type.
The neat thing about fonts is you can scale them to any size without getting pixelated