I farmed all four in one afternoon quite easily on my druid.
Pro tip: look for merchant in appropriate zones (NK, Lavastorm, OoT, etc.) you will usually find most components for sell, and not too expensive at all
[You must be logged in to view images. Log in or Register.]
They are obviously good items to have on a mage. The question is how much time/money are you willing to spend on him?
As for getting only the Stein, or Torch, or whatever, you don't really decide what drops in Najena, but yeah I recommend Water/Fire, then Earth, then Air, if you have to choose.
Holding a shovel or a broom is also nice FashionQuest, so more points to you
[You must be logged in to view images. Log in or Register.]