Just farm them, it isn't that hard. Go into WC and kill the druids of the fang on your 20. If you can't solo enough of it, then queue for it.
You dont think i am? its still rng. (1.6% drop rate on druid mobs)
Just farm shadowfangs and gloomshrouds too. ITS THAT EASY
ps: still buying
The 2% drop rate is 100x higher than Shadowfang/Gloomshroud at 0.02%.
GL either way tho.