The level 50 relic looks great for glamour. I typically stop enhancing it once the bit to cause it 'glow' has been applied. And yeah -- it is suitable for glamour and not much else at this point.

You are told that you need the ingredients you get from those three dungeons, although it is left to you to figure out how to get to them. If memory serves from my recent run-through for this, they at least put a blue quest marker on them. Back in the day, when there was nothing further to do except story-patches, it was probably easier to encounter the quests and go for it.