Any advice on which DPV Camera mount to get for DSLR Rig?

Looking to mount my video rig on my Sierra scooter.

Rig : NA-GH3, NA-NINJA2, 170mm Dome, 2x Keldan Luna 8's

My first choice - was to go for the Dive-Xtras Deluxe Camera Mount, its movable, etc etc

http://www.dive-xtras.com/pages/accessories/deluxe_mount.asp

But the more I look at photos the more it looks 'large' to me - and it might be too big for a Nauticam housing?

The next one I looked at was the YellowDiving one

http://www.yellowdiving.pl/en/shop/details/45/21/latarki-hid-video/akcesoria/vm.html

But I'm not sure how well (or even how) it will work in the long term.

Anybody?

I use the silent submerge video mount. It is very similar to the Yellowdiving one. I use it with a Amphibico Phenom video housing as well as an Aquatica 7D housing. works great on both. No complaints with it.

http://www.silent-submersion.com/accessories/accessories.html