Some drivers for dual head graphic cards allow to use a screen without consuming all real estate of the display, shrinking height or width and leaving some unused black area. You can see this in several laptops adjusted to an external video projector in screen mirroring mode. Even back in the times of Sys. 7.1 you could set your Mac to use a 13 inch CRT at 640x400 for testing PowerBook software. Might it be possible to configure the driver for a 10.4 inch LCD to use only 9 inch, centered? This way you could use any LCD that fits into the case and adjust it by software to fit the picture into the bezel. Any viable solution should be documented in the 68kMLA wiki, please. (Non working tested configurations might be documented, as well, as they are interesting for anyone trying to do a similar hack.)