I have my left sided gear up to date, however on the left side, it needs much of an upgrade. The reason why I'm saying this because the last stage of the Relic Reborn quest involves me to join a 8 player party to take down a chimera beast (average item level of 52, whereas I have an average of 51 ).

Is it right that Wolf Amber gear upgrade is essential? I'm really struggling right now, as I've used up 150k of gil for upgrades, unless theres another way, apart from getting crafting help from fc.