The problem with gear in this game in general is that the Relic/Anima weapon is designed around being a time/gil/crafting sink. That's the entire point of it. For the amount of time you spend trying to get the materials to do it, you could probably just wait until the next patch and the process gets nerfed. Because of ilevel sync, most "BiS" gear is of no benefit in a synced dungeon.

Like, I say this as just a way of discouraging farming tomes just to buy some parts of it, If you like the appearance of the weapon, or specifically playing the level 50 or 60 content with the matching level 50 or 60 relic/anima weapon to get a tiny advantage, then by all means. But in the grand scheme of things, the relic/anima weapons are just resource sinks.

Even in other games, similar gold sink/resource sinks exist. So the ability to actually get them is heavily depending on you getting them within the patch window of release, otherwise if you wait too long, the process gets nerfed and the resources to do it become scarce as less people produce the crafted materials.

Whatever class you main, is the only one that is worth doing this for. If you're not in love with the appearance of the weapon in it's final form then stop now.

If Yoshi-P/Square-Enix really cared about these quests, they would rethink the strategy so that it doesn't need to be nerfed after a certain point. Like simply having one weapon go through the process should be enough to be able to repeat the process on other jobs at discount, or "transform" one weapon for one job into one for another job if you've decided to change your main class.