Can you tell me the location of the nutral clutch safety switch?

Yes but you have to find it. Check on the clutch pedal I think in that time was the usual spot. If you wanted u can even bypass the switch. Should be a normal open or closed switch, if so u can pull connector and solder both wires together. If it were my car I would NOT do this of course

follow clutch pedal up under dash , should be mounted on a bracket there , 2 wire connector. Can be by-passed as mentioned (test purpose) , but ALSO as mentioned , that is NOT recommended (also won't pass 'safety inspection in many states).

easier to bypass it by clipping wire and wiring it again location is above clutch pedal. small rectangle box with a button on the side hooked by 2 wires.