@ Billt
Some good suggestions there. Here is what I was thinking of (have my A4KT open next to me):
1) Take out the drive chassis.
2) Rotate the Ports module 90 degrees and shift it down.
3) Eliminate the 3 drive bays that sit in front of the PSU.
The above three points mean I can slim the width of the case by at least 1 or 2 inches.
4) Place CD and Floppy where the two hard-drive bays used to sit (when slotted in the original chassis).
5) Add a fixed HD cage for three 3.5" drives, in front of the PSU.
At this point I should be able to trim the length of the case by at least 2 inches. If I shift the CD and floppy rearwards, over the mobo (but not obstructing any fans/cooling) I can trim the depth of the case by at least 2 inches (and that doesn't include space savings by eliminating the existing bezel). If I did this, though, the CD and floppy would have to be mounted on a rack with a front tilting hinge so that they can be lifted up to access the CPU card)
6) Replace and reposition the power/reset/drive access LEDs (and the keylock).
That's just a start and it is how my system would be configured (no CybervisionPPC card) but I could swap the Cd for an HD to get more space above the CPU card if need be. That would have to be decided before the case was made.
The other thing is, I would be keen to have a single plate rear section with all the ports laser cut. This means the PSU and Ports module would sit about 10mm forward from their current position and the antenna connector on my PIV/Paloma would not be obstructed by the indented backplane area that currently exists on the A4KT.