I'm far less urged to translate the 3270 font (I'm a huge fan of it) if you are relying on Terminus. It'd probably be better to support other fonts DEC terminals supported. I'll dig a bit into that. :-)
That's great, raise or ticket or send me an email if you find anything useful. It's not too much work for me to convert things into a usable format if I have a BDF file (8x12 only - anything else would require hardware changes!) for the font.
I'm very fond of double width and height, but the DEC terminals implemented double width by halving the pixel clock rather than a proper font. Minitel did it right.