I ride an aprilia Tuono on the street... roughly 120hp, 70ft/lbs of torque or something like that. I'm also an expert road racer & track day instructor. I race an SV650 in various lightweight classes. It's a blast.
You gotta remember... it's your FIRST track bike, not your LAST. If you want something different later on then there's nothing keeping you from selling it later & getting a different track bike. It's not like you're mating for life