Need Help Buying ION Drum Set (cymbal expansion)

[jayou521]

UPDATE: I just got my ION drums and they won't turn on. The guide button doesn't light up when I connect it to the 360.

Is there some special trick to getting them to turn on I don't know about?
---------------------------------------------------------------------------------------
So I just got $300 richer and want to buy an ION drum set (360), however the Drum Rocker Cymbal Expansion Kit from ION is out of stock until further notice. (how long it's been like this.. i don't know) ...

So what options are out there for me? Are there other ways of getting a third cymbal? What should I do? Help would be appreciated~!