Treasure Hunter trophy

This is the only trophy I need to earn to get the platinum, and I am post-game, most of the way through the crystarium and with 2 ultimate weapons and most of the accessories ticked off my list. I am starting to get a bit fed up now though with the constant grinding of certain enemies over and over again. The blasted turtles never seem to drop a platinum ingot, so I went for while to do mission 24 over and over again to SLOWLY get some money.:roll2

This is my second playthrough because nothing in-game told me about the fact that if i sold certain items then i would not be able to get them again for upgrading!!!!:cry: purpose

Anyway, to my point..........how many of you have this trophy and how much of a ball-ache is it?