With passion phase blade itself you will have 5 frame zeal already, You need 72 Ias in total to reach 4 frame with passion phase blade.

So 25% (weap), 15%(shako), 15%(SS), 20%(cat eye, or highwarth). That's 75 ias, boom, 4 frame Zeal with enchaness.

Great idea there tidu, I think the 80% Ar boness will also help enchantess very much.