I just happened to be in my local yacht surplus store the other day and they had a whole room full of stanchions and pulpits. It's always my first stop for expensive pieces, got a genny car for $24 I'd have paid MORE for.
http://www.minneysyachtsurplus.com/
They are pretty knowledgeable but don't think they could identify the right parts pver the phone. Some of the boats in that pile on your video must have ended in salvage somewhere near you.