Why no one else haven't done this yet, I don't know.
I'd love to see Ben wire himself a 2.4ghz sender which connects to the Wii's Gamecube ports and mods an original controller to be connect to it wirelessly WITH the rumble feature intact! It can be done, I know it. Why not throw in a rechargable battery, while we're at it? It's doable, affordable and easy mod. For mastermind and all around super smart and handsome Benheck!