With that gear, you will have to use food or make Griffonskin ring/Rose-gold earscrews cause it'll put you at 466 accuracy. For turn 1-4, you can use La Noscean toast HQ or Deviled Eggs HQ to meat the 475 accuracy req. It's especially important for us warrior because our wrath stacks depends on the hitting of our skills and if you don't hit, you'll build wrath slower leading to less Inner Beast up-time or even miss Inner Beast. For turn 5, I would either use Stuffed Cabbage HQ or make both of the accessories mentioned above to meet 485 accuracy req.
In all honesty, try your best to beat Titan EX. Ifrit EX is a joke and once you're done with Titan, the Dual Haken is pretty much up for grab. I beat them both the same day.