I have a GY-DV300, and would like to find an adapter that would connect to the small female threads that the ($76 USD?!) KA-33U shotgun mic mount would mount, but terminiate in a standard male 5/8"-27 mic mount thread so I can put my own shock mount on it. Does anyone here:

1) Know of such a beast?

2) Know what the thread information is on the camera so I can have one machined?

Thanks!