We've completed testing and are officially announcing that the SOF upper playfield chute is no longer unobtainium. It seems upon close inspection, this chute is often cracked and broken in most Swords Of Fury's we've noticed. We re-created the geometry and improved upon the design to provide greater strength and reliability.
Part #03-8137 is available for $35 plus shipping (typically $4.75 in the US, more abroad). Just PM me if interested, thank you!
Matt & Dan