Well, thanks, Darrin
Nothing has happened for so long that I had actually started to brainstorm the possibilities, myself. It could be that very few builders are familiar with the details of Ferrington's work, which is really too bad, because going outside the box was his best thing - his innovative guitars are attractive and led to what seems to have been some marketing success, including a design deal with Kramer.
The neck attachment that caught my eye is a bolt-on-style neck in an acoustic body, and there is no sign of a screw in the bottom of the body at the heel. There is no screw plate in evidence. So did he glue the neck into the pocket, or is there some trickier mechanical arrangement? There is a nice view of this on p79 of his book, on a bass made for Don Was.
Lance or Brock, since Ferrington Guitars had a print run of only 60,000 I would be happy to put up a scan of just that small area of the page (for editorial purposes?) if it won't land us in hot water.
Thanks to everyone who gave this a look and a thought.
Dan