grimoire gil, loot, beasts all that in this thread. many questions

[mindfray]

So I'm in golmore forest and i have 30k gil, i can buy my first grimoire. i have all of them unlocked. so i can afford one of them except the one thats 200k.

so given my place in the game, and characters in the 20's/

what grimorie should i buy first and what should i farm for major gil?
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also when i get to the mt omisace i can buy thief's cuffs, so what should be my target for stealing (aside from everything)