My video “First Tour of Tammy Norie” is by far my most popular, and includes a bit of a description of the rig and how it works. I've been thinking about making a video like the one you describe, with basic instructions. And with co-operation from another boat we could get footage from both on-board and off. The difference always seems quite surprising, as you can see in “Tammy Norie and Stern” where I show them side-by-side.
Anyway, I'd be very happy to help out or collaborate.
For what it's worth I recommend against the GoPro camera exclusively, except for a limited number of shots where you need a really wide angle. It generally fails to show detail and has extremely bad sound. It would be a good idea to have one rigged up simultaneously with other cameras, so you can edit in GoPro style footage in production.
For what it's worth, this playlist has all the JRA members footage that I know about on YouTube.