Pilot reports failure of the nose gear to extend during approach. All manual and emergency methods of gear extension are tried without success. Nose gear collapses on landing causing damage to nacelle and the propeller.

Narrative

Upon approach to landing; the nose gear failed to extend. [I] exited the pattern to attempt emergency gear extension procedures. [A] fly-by confirmed nose gear at 45 degree angle. Check list procedure failed to correct; as did 4G loads. Gear would not respond to recycle commands up or down. After alerting the UNICOM frequency to [have] emergency equipment to respond; I did rehearse one landing to practice my approach and shut down procedures and then landed. [My] attempt to cause prop to stop failed and [the] prop was damaged after striking the ground. There were no injuries to myself or anyone on the ground. Only damage was to my aircraft. There was no property damage. Aircraft was moved to my hanger. From the air I did [have] the FBO to call an expert on this type of aircraft to consult with us for suggestions. He could not suggest anything outside the printed emergency procedures I had in the aircraft; except to execute a 4G force to cause the gear to extend. Several of these maneuvers failed to cause the gear to respond. I was the only person on board and had about 2 hours of fuel remaining on board after landing.