Well, from what I understand, you can only order these parts from Yamato if you're a licensed dealer of their products, correct? Given that no dealer from US/Can has indicated that they would order these parts, it's not a question of whether ordering from you is cheaper, but that there's no other way for me to get them! lol.
I could be mistaken, but that's the situation as I understand it. If i'm wrong, please correct me.