Phase 1 to get this instrument, done.
Korg RK-100S Keytar.
What is this ridiculous concept? I got the idea from Philip Bynoe during Steve Vai's Fire Garden/Ultra Zone tours and thought I could try something similar. I ended up writing a song around dueling guitar/keyboards and thought that would look awesome when performed. Next phase is to hunt down a white Steinberger Spirit and find a way to merge the two together.
As for the keytar itself, it's dead simple to use, it's got plenty of great sounds from Korg's extended library, and very light.
Wish my insanity luck!
It's a ridicilous concept, but a noble one. Good luck!