Well, I haven't had a chance to play the game yet so I don't know much about the SG controllers, but wouldn't it be cool to sacrifice an old guitar and build a controller from scratch?
First thing I would do is remove the truss rod from the neck and keep the channel (for wiring of course) and lead the wires to the control cutout under the pickguard. Problem is, can I find buttons shallow enough to fit inside the neck of the guitar? Frets are made of nickel, so I could drill through them most likely.
For those who have played the game...how does the whammy bar work? Is it detected as a button press? If it is, then you can just mount a button underneath the bar and when it is tilted back, it could engage the microswitch, I'd switch out the springs for lighter tension. The only thing left is the thing that you strum. Is it a button or a switch or something? Can somebody possibly explain it? This could be really cool if done right. All we would need to do is hack PS controller.
Tell me what you think...