My autohelm st30 wind transducer has a broken paddle that was either hit by a bird or knocked off in an ice storm. My O&I handbook diagram indicates the wind transducer with mounting kit. Can just the top section be replaced above the mounting kit or do I have to replace the entire assembly? I have searched on-line but could not find even the entire assembly. The autohelm is the standard equipment on my Hunter 1994 Legend 355. Has anyone had this same occurance?