This is what iv been planning but while searching for companies to convert my harness to stand alone, One company recommended not doing this. My plan was L92 with turbo 350 full manual valve body. Can it be done? switching to Drive by cable would be a pain.
Just program and wire the computer like it's a stick shift vehicle...run the park neutral switch wires to the shifter instead of the clutch pedal though. If you plan to have the computer start the engine still, then you might need to play with the clutch interlock safety check setting in the PCM.