Poly-planar wanted

[smokeonthewater]

I am desperately trying to find a Poly-Planar MZ-100 amplifier.
They have been discontinued and while several online sources list them as in stock so far all that I have called have turned out to not have them. I have spoken with the manufacturer as well...

If anyone has a local source or one sitting on a shelf... heck maybe you even have one in your boat and want a new amp... I need this specific model for my system
It works great without it but I'm trying to do multiple zones and enable intercom feature

I'm also looking for an extension cable for the same system (blue waterproof screw caps on the ends)