I can't tell you where to find it, but it's produced by MegaHouse, and apparently the list price for it was 7600 yen. It was produced in 2009, so it's probably harder to find by now. I would check out Yahoo Japan's auction sites (you'll have to use a proxy service) or just troll eBay. If you have the name of the company and stuff, though, your search might be a little more fruitful. Sorry I couldn't be more help!