Just an FYI - in my experience you can put a Quadra 800 motherboard into a Q700 case with no problem. No problems mating to the CPU, the internal speaker, or anything else IIRC.
That's good to know. That would imply the same transplant is possible with an 840AV. Even better if you don't need rear access for the third Nubus slot. I could possibly get away with just drilling out a hole for the RCA plug on the Spigot, if the other two are taken up (fast SCSI, Audiomedia II for example)
What priority are aesthetics
Somewhat of a priority, but not necessarily a dealbreaker.
