Let me clarify, we've mapped all 86 visible leads on the board. There's still the matter of the caps and resistors.
The plan is still to make a wire harness. I'm putting the Turbo 040 where the HD used to be, so I'll need the connector to be flexible.
Trash80- My first impulse is to use wire pulled from a bundled U2W SCSI cable. The length should be about equal to the leads in the iicx adapter, so I'm not too worried about that. If there's too much RF I'll wrap the wire bundle in foil or something.
I'm also thinking of wiring all the 5V and GND pins of the Turbo040 directly to a hard drive connector via nice fat wires. Hopefully this will remove the need for those capacitors the IIcx adapter has.