Need Komatsu help

I have a 2008 Komatsu PC78US-6 excavator in need of the haydraulic control valve assembly. The boom function part
was damaged by debris from the boom cylinder after I had it repacked by a hydraulic shop. Not only does Komatsu wan`t
8200.00 plus tax and shipping they tell me it must be ordered from the factory and not delivered untill the end of
February. Needless to say I need the machine now. Any help advise or suggestions will be greatly appreciated.

Need Komatsu help