Four + spare
And they look pretty nice, right? Right. Unfortunately in the general excitement I'd forgotten about the scrapy-scrape sound from that corner that needed attention.
That scraping was a worn brake pad gouging the rotor. The blackish around the outside there is okay. The silver around the middle is not okay.
Way not okay. Small hope was held out that it could be turned (lathed flat) but that hope was dashed by the guys at Mountain Imports. This rotor was "way gone" by their measurements.
¡Ay caramba! That pad on the left, the offender, looks even worse that the one that gave Team Rehm trouble when they came through. Lesson learned: replace pads at the first scrape.