Nice little catch for a project man. Similar condition to a Gixxer 6 that I helped a mate rebuild. It was surprisingly fun stripping it down and getting excited about replacing parts.
Good thing about project bikes is you can set your own timeline. Ain't no need to go broke buying everything in one hit.

Keep us updated! I'm keen as chips to get myself a track R6, so eager to learn about more of their potential hidden secrets/flaws.