The Keg Runner

I finally managed to solo this at level 100 with 1 minute to spare by doing the following:

1. Do not talk to the Brewmaster Bo.

2. Clear all trash (including the gladiators). However, save the Elite Totem on the mountain for the end (see next step).

3. Destroy the elite Totem on the mountain, as it will drop a 25 beer barrel. Pick up the barrel and mount up.
*Note 1: I found that I had to mount up twice in order to get on my mount (as I'm a worgen and the first time I would mount, I would end up in my running form).

**Note 2: It's important at this step to discuss how the brew buff works. As long as your buff is 25 or less, you can run/mount at normal speed. Once you exceed 25, you become encumbered and run/mount at slower speed and you can no longer pick up any more brew.

4. Talk to Brewmaster Bo and follow him. After he goes to the cauldron, stay back a bit and let him deposit the first 100 brew. Then, deposit the 25 brew you are carrying.

5. Wait a few seconds to clear the group of adds that is coming up on the beach.

6. Go the shipwreck at the top of the mountain and dispatch whatever adds are there to pick up a 25 brew barrel.

7. Take the zip line down to the cave and dispatch the adds in the cave to pick up another 25 brew barrel. You will now be encumbered with 50 brew buff. Mount up and run back to the cauldron. Clear any adds that are coming.

8. Take the zip line from the cauldron to the ship and dispatch the adds to pick up another 25 brew barrel. Go back to the cauldron and you should be done.

The easiest way we have found is:
1. Do not talk to the NPC at the start.
2. Go and clear the trashes, however do not go to the gladiators, instead, take the road to the right and go to the hill where Totem with high hp is located.
3. Kill the totem and get the Brew, *IMPORTANT* that person who took the brew should not get close to cauldron until the event starts.
4. Follow the path up the hill, you should see a shipwreck on top of the hill (Pirates of Carribean reference), clear the trash there and get back to the starting npc.
5. Start the event up to step 2.
6. The person with brew tosses it into the cauldron and stays on the spot for the stealers while 2 other people goes to the shipwreck.
7. Stack as much brew as you can and use the ropes to get back. If you didnt get enough, kill the nearby trashes and get some from the small puddles.

Good luck!

This is my Achivement video : The Keg Runner (Solo)

https://www.youtube.com/watch?v=Mx7Zw_vukP4