You don't need a 'kit'. Raptor parts will bolt on. You have to change the whole front end (fenders, hood, header panel, grill, etc...) but the bodies/frames are the same. I'm on my phone so I can't switch views to go search but there is a guy on this forum that has already converted his 04-08 style to a Raptor clone.
2010 Tux Black Raptor SCAB