I don't remember which specific job guide it was for (probably applies to all of them), but spicy mentioned a while back that "extreme max accuracy" sets are such a huge dps loss, it's usually not worth it.
For this particular job, extreme acc set for both melee and ranged is pretty necessary in higher lv raid like dyna D.
Dyna D Alliance pulled a drg or thf mob and cor needs to shoot to gain TP? Need extreme racc set to land shots in melee pt.
Alliance pulled a THF leader mob? Probably need extreme melee acc set to hit in most pt too.
For other melee jobs, they can get away with less acc. I only use 2-3 tiers of melee acc set on dnc in dyna D, on COR I need 5 tiers.
Anyways, back to the question. This is what I use.
Max racc
ItemSet 242238
Swap ring to haverton hq if you have it. Ranged
Path adhemar.
Max acc
ItemSet 340842
Im missing Ej+1 neck so it's not quite BiS. Should be close I think.