the Mum M8 is essentially the spiritual successor to the Fizzle Guts. Your best shot is to buy a Casio FZ-1 and remove the ICs yourself. Send him an email and see what the situation is. I've read on forums that he's usually willing to make one if you provide ICs. I'm also quite sad I can't get one, but he was having to source every IC from a donor FZ-1, so it wasn't the most viable production process and I believe it was always intended to only be produced in limited runs.
