Here's some video of it working:
From under the bench,
From the track side.
Anyhow, it's in place and working. I have had to place and nail down all the track in order to get this working. I realised when I started to put the point in that because everything is connected to everything else, I need all track in and all sections created in order to proceed. You can see in the picture below the isolating rail joiners and the track pins yet to be fully nailed down.