The nut is pretty easy to drill a hole through. If you have the ability to remove the oil pan, I bet you have the ability to drill a hole through the nut.
The only reason why people are trying different shafts, is because the 3.0l motor breaks off the shaft. It took me about 5 blown up motors to figure out how to keep this from happening. I can tell you that it takes about 117 seconds of no oil pressure to blow up the motor.