Ion Drum Rocker midi controller for USB and/or Rock Band 1, 2, 3

Used, but taken very well care of Ion Drum Rocker electronic midi drum kit. Comes with original controller/brain for xbox 360, but as far as I know, can also be used for pc midi audio production (I haven't personally tried). Ion suggests using an alesis dm5 controller to use it as a normal electronic kit outside of rockband/guitar hero, but that model is since been discontinued, so may be hard to come by. I assume most newer alesis dm controllers will work, as well as other generic controllers. The pads and cymbals use a detachable1/4" output to the brain module. Open to reasonable offers, have had this for years already (since it came out), and in no hurry to sell at the moment. In good condition, these still tend to be priced at ~$300+ used, so keep in mind I'm only asking $250 right off the bat... I've attached recent screenshots from amazon and eBay showing what is currently available price wise. FYI: the $250 ebay bid is a $330 buy it now + $37.47 shipping (to my address)