I've just done some business with Kanoya, package arrived fairly quickly. I asked him about the NH-1 USB cable, here's his reply:
"For the USB cable, kindly note we have for sale that can match the Sony MZ-NH1 on our Yahoo auctions, please see below link for your reference:
Please review and advise if this USB cable is the Right one that your friend is looking for? If ok, our best price including shipping cost is $30/pc (by Air Mail without tracking number service). If he needs, we will sell it on eBay specially for him. The price might be a little higher, but kindly note this kind USB cable is rare now and the original cost is high when we bought them from the supplier. Please let us know if it is workable for him?"
I received my 10 HI-Md blanks, AC wall charger and charging stand for the NH-1 today from Kanoya. I would say he's reliable and prices were not out of line; if you can't find the part elsewhere for considerably less and from a reputable seller, then go with Kanoya (which apparently is the store name, I believe Mr. Hashikawa is the person you'll deal with. Tell him "eremite" sent you