Yeah, for wiring in that thing I think it had four push pull pots that coil tapped each pickup and put them out of phase separately. I actually have something very similar to that on my guitar, just two switches instead. As far as I know, besides pickups and the two switches that page had on his actual one, apparently two actually, I doubt there's anything that's custom. Well, I guess he did shave down the neck a little bit, but I think that's it, at least in the bit of research that I did before.