I'd recommend getting PGL up on the side as PGL level 42 Mantra skill is pretty nice. 10% extra healing for yourself and near-by party members. GLD you should get to 34 for Awareness and Provoke at 22 after you get it to 15 for the job quest.
Heavy Darklight is easy to obtain but HQ Heavy Darksteel is better as it provides almost the same stats and you can meld materias in it. The AF armor for Warrior is Fighter series. The Warrior's item is AF+1 so warrior's cuirass is AF+1. You get the fighter version with level 50 job quest then upgrade it with mythology tomestones. Heavy Allagan is what you get as drop from Coil.