Nice! You'll have to tell us how they sound.
Yep, $110 shipped. All I have to do is send them in to Sennheiser to fix a small break where the driver connected to the socket for the cable. But since there is no cable and I'm making my own from teflon insulated silver plated oxygen free copper (which is actually not expensive, about $8 for 22 awg for 50 feet) I'll probably solder directly to the drivers. But I'm not sure, since he said it was a thin gold wire or something. I'm not familiar with the insides of those things so I may send them back. Sennheiser may even replace the cable, so can't go wrong with that.
By the way DS, the PM system doesn't need to be used exclusively. His question was totally on topic.
Bassoon, n. A brazen instrument into which a fool blows out his brains.