Here is where I hit a roadblock, once again. I couldn't find the last two. I did numerous circles around the zone, checking all spawn points again and again - nothing. I was beginning to feel let down once again, but my boyfriend gave me a little boost to keep me looking. I took a breather and went to WoWhead. One of the comments there inspired me so I decided to, as suggested, go off the beaten path.
Ah, sweet victory. This time it didn't take me nearly as long and I completed the entire thing around 3:40. So that's done. To be honest, I wasn't having the greatest of days, but that definitely turned it around. So now that the hunt is over, I can move on to other things. I just hope I won't have to click on any crystals any time soon.