Bryan,
Parts are going to be very hard to find. Have you tried to see if Wiggins has any parts drawings? That would make it much easier to make the parts.
What is used is not four nozzles, but two slinger rings, each with a couple of aluminum tubes coming off of the slinger rings. I have this system on my PA-30.
Maybe we can make an exchange of prisoners. I would love a copy of the installation manual, as I don't have that paperwork available to me. It might give me a clue for continuing maintenance.
Next time I have one of the engines uncowled, I will send you pictures and measurements if you need them.