Its a nice idea, and Im sure there will me conflicting thoughts about it.
If its space you are worried about, then removal of the floppy drive could be an option.
Maybe Jens when hs does the Mk2 Indivision coul dintegrate an expansion port for high speed data throughput and then work on adapting an exisitng miniature graphics card for embedded systems.
In combination with his new ACA cards, maybe a passthrough adaptor between motherboard and ACA card (due to their short length!!) would help.