Choptima mount for Shearwater HUD on current NERD bracket

First draft of a custom HUD mount for the Shearwater HUD to be on top of the DSV when using the current Choptima NERD bracket.

This should center around the sliding wedges of the bracket and then just need 2x m4 / 10mm cap head screws to mount it.

I have used suitable brass inserts to make mount / remount more reliable.

Centre to centre separation for the holes on the top mount is 30mm; would be easy enough to re-create this piece with different cutouts for other inserts.