Before you begin on DM53 LCD, I hope this will be useful. Olivier Galibert created an svg of it around 3 years ago when we were getting started on G&W emulation. http://tsk-tsk.net/net/temp/dm-53.svg
I hope we can scan the DM53 LCDs anyway, the image OG created was based on relatively low-res pictures and stuff from the pica-pic site IIRC, and is not very accurate to the correct appearance of the characters on screen (particularly donald, who is very "washed out" in the current SVG)