That's really cool Wolf. Neve is here but I haven't talked to them yet.
John's bass looked like a triple Omega, and Mario said it was semi-hollow. It was a light colored wood, maybe a pale mahogany or alder. It had a p-bass pup in the neck, mudbucker in the middle, and a lipstick tube at the bridge with volume and tone for each, selector on the lower horn.
Mario said that the bass sounds really bad and is uncomfortable to play because the omega cutouts are very sharp and dig in to him when he plays it. The luthier killed himself shortly after completing the instrument, because it was a long build and he was bankrupt. Not a happy story, but Mario said he still has it and loves it because it's the only bass John ever designed.