carbs are gunked up.... you might get lucky by draining the gas.... tank and carbs.... and adding fresh gas.... otherwise you are in for a carb rebuild..
try anSV650 or the ninja 650... these bikes are much more suited to a new rider than the high strung full-on race bikes you listed above... regardless of what bike you end up with take an MSF course...
yes mile for mile owning a sportbike is more expensive than most cars... tires @ roughly...