Hello everyone, I've finished my DIY project and here are some pictures:
The 35mm adapter. Basically it's just a cheap extension tube for Nikon F-mount with Daniel's vibrating GG holder inside of it.
The Canon EE-A, GG holder, vibrating motor and the power cables.
The parts I used to connect the adapter and my HV20, from left to right:
Nikon BR3 adapter ring, 52mm male-male ring, 43mm-52mm ring.
With Nikon 85mm F2.0 lens, my DIY rail and follow focus
And here are some test shots: