How much accuracy do you need for coil 4 and 5?

I've run coil 1-3 and it seems my 432 accuracy is more than enough since i never saw myself missing on a mob.

Im planning on upgrading some of my darklight gears into crafted i70s because they are the 2nd best currently until I obtain some allagans which im 100% sure is the best.

Now I am currently planning on which materias to place them wether my accuracy is enough for coil 4-5 or there's a value i need to reach for my accuracy to never miss. SO i can plan ahead which materias im going to buy before they inflate the prices again