Looks like everything is present and accounted for. Maybe either have those rotors turned or replaced along with new pads before putting them on the car. This is also the perfect time to get braided stainless lines.
They supposedly only have 2000 miles on them. Do you really think they need to be replaced?
With that much rust, I would not chance it.
Unless the rotors are pitted from that rust (doubt it), those rotors look fine - no grooves or wear marks out near edge. That surface rust will come off after the very first stop. Yes, really.