I'll go against the tide here and say no, it isn't the right bike. Maybe you're super responsible and won't ever be tempted to hammer the throttle, but since I don't know you, I'm going to lump you in with the majority of guys who itch to ride a sportbike. The Hayabusa can be a very forgiving machine, but it stills blows me away every time I ride it. See, it compresses the space/time continuum man; **** happens really fast, and I'm a firm believer that solid riding experience helps you deal with aforementioned ****. Riding a 750 Shadow (while a great bike in it's own right) in no way preps you for the orgasmic (yeah, I said orgasmic) thrust the Busa can lay down.
Listen, I'm 6'4" and I understand the monkey humping a football thing. But I practiced what I preach and started 20 odd years ago on a 500 and gradually moved my way up the scale. There are lots of great bikes out there that will fit you as well or better than the Busa (Bandit, ZR-750, etc) and, more importantly, get you some seat time that will translate "mo bettah" to the Happy Bus.