The real issue is whether the rotors are at min thickness: 26.4mm front. New they are 28mm. If they aren't cracking I believe you can safely use them to min thickness. I don't remember the rear numbers, something like 18.x min.
I should add, since you're installing new pads I would replace rotors near min. For reference, I got 13 track days out of my last set of front rotors and pads. Rear pads were also shot but rear rotors are only about at half.
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