These logic boards were used in both the 64/6500 towers and the 54/5500 AIOs; the only difference being the towers had the two slot PCI riser instead of the one slot, and a video out adapter that plugs into the mobo somewhere. If you can't find one of those, a PCI video card is your next option.
Heck, if you can get power to it, a Sonnet Tempo Trio in the second slot will also give you USB, Firewire and ATA-100 on a standard connector - save you messing about with the backplane slot pins. Or some other old-Mac compatible PCI ATA card, without the USB/FW, could be easier to find.
Stick a CF card or laptop HD on one of those, and you'd have a system ready to run in no more cubic volume than the tray (not counting the PS) ^_^
http://www.zone6400.com/
Heck, if you can get power to it, a Sonnet Tempo Trio in the second slot will also give you USB, Firewire and ATA-100 on a standard connector - save you messing about with the backplane slot pins. Or some other old-Mac compatible PCI ATA card, without the USB/FW, could be easier to find.
Stick a CF card or laptop HD on one of those, and you'd have a system ready to run in no more cubic volume than the tray (not counting the PS) ^_^
http://www.zone6400.com/