Ok guys... I'm so confused now... In need of guidance.

So I went ahead with one myth ring and one myth pants. I now have 300 extra myth tomes and 9 animal fat (was researching about gryphonskin tunic when I found this thread).

Currently on turn 2. To be honest I dont really care about BiS, I just want the best gear for what I have now.

I am so confused as to what gear should I buy next. Should I save the money for myth chest piece,
or
should I buy other myth gear in other word, delay the chest piece and buy the materia for the gryphon tunic instead? If so, what gear? I'm thinking of getting another ring but after all this discussion I'm so confused.