Replacement or repair of Stowe speed transducer

[Hoist]

A friend has just purchased a boat that’s fitted with Stowe instruments

All seem to be working however the speed transducer has a broken shaft and is wobbling inside it’s case

I reckon I could repair it, however are there any other ones that may fit this either from Stowe or airmar ?

Cheers

 

[Hoist]

Is it coincidence that this one looks completely identical?