Hard mounting the M2 on the HVX?

[SomewhereinLA]

I am trying to Hard mount the M2 on the HVX, I got the stepdown rings, the polarising filter frame, but I can't find a 55mm reversing ring, does anyone know where to find one, is there a different way to hard mount the M2?

Thank you.

 

[SomewhereinLA]

Never mind, I finally found a place that has one.
Camerafilters.com