Great price for this game might pick one up for my brother.
I got a Hori stick for this game and thought it was a L M H configuration and took me about an hour to figure out it was NOT the case. I was also surprised to see you could not configure it. Guess this is because the limited amount of buttons and placement on the Wiimote. Once I figured it out I was having a blast.
I'm not sure about the hori stick that plugs into the wii remote, but you can configure gamecube controls without problem. You just need to be able to read kanji. (I don't know why they use the button -> action mapping instead of action -> button mapping )
Also worth noting, all the mini games use the wii remote, but you must disconnect all gamecube controllers because you can play any of the mini games.