new rotors and pads on 89 300ce

[mlozzi200478]

im replacing my front rotors with cross drilled and slotted ,along with ceramic pads,i was reading they recomend you replace the brake pad wear indicator while doing a brake job, does anyone know if this is absolutley nessasary? or can i reuse the old ones,im sure there cheap enough if i need to replace them,also are these metric bolts or is there a special torqx bit to remove the caliper bracket? any ideas would be great thanks guys.marc