I would get 2k miles, maybe 2200 out of a set of tires(no burnouts, just curves), sport front, sport touring rear.
1200-1500 miles out of a sport rear(Q2 and Roadsmart).
It's a Busa, big weight, big torque, it's gonna eat tires, especially the rear.
Replacing tires as a pair is ideal, but not always needed. If you ride fairly conservatively, 1 front to 2 rear tires is average.
If the front looks good, it should be fine.
But, pay close attention to the wear bars, and any signs of cupping and feathering.
That quarter size contact patch where your tires meet the road, that's the only thing between you and a crash...especially the front.
Which is also why I preach suspension sag and tire pressure to everyone, alot of folks laugh, and that's fine, but it's really important.
Also why I won't run a sport touring tire on the front, harder compound and less grip.
The front is where the control is.
The rear can handle a sport touring, and I've worn them completely bald quickly, just like a sport tire.
I've also had 2 rear tires blow out when riding, straight line, not high speed, no big deal. A front tire blowing out, can be a big problem.
Proper suspension set up, tires, tire pressure, and brakes, all as important as good gear.
Yet they seem to be unimportant or way down the list for so many people.
The new exhaust and fancy farkles can come after.