Never arbitrarily replace the rotors or pads, check the minimum width on each (inside and outside).
And the calipers above won't work, they will stop at the top edge of the caliper that the pad never touches.
You'll need a set of real rotor measuring calipers.
And yes, it's worth your time and trouble to buy such a thing with brakes this expensive.
I also recommend buying from FCP Euro because they will literally replace them when you wear them out.
Except the pads, if you don't track your car I suggest Akebono's for the blue brakes, and CarboTech 1521's for the 2NH.
https://www.amazon.com/Anytime-Tools...s%2C105&sr=8-1