Ive always believed that any bike is a fine bike to start off on. I mean you really can drive the Busa around like a mo-ped if you wanted to. Hell, in England they make a 35 horsepower version of the Busa for beginer bikers.
The problem is this, there is a nerve that runs from your right wrist to your testicles. If that nerve is not routed through the common sense area of your brain first, you'll kill yourself on the Busa.
I'd say dont take the chance.