Coming from a Hayabusa, i can feel with you. Welcome!
You do sound like you will mod your Rocket mate. You will probably not get the same topspeed as a ZX14, but it is surprisingly easy to get the same rearwheel power out of your Rocket...
And when you're there, you might feel that it's even more fun to have that kind of power from a massive engine like that, at relatively low revs. The roar is just better!