I received my Hellwig sway bar last night and installed it today.
I don't know how y'all did it that did the whole install in 30 minutes. I think my first 15 minutes were just putting down a pad under the truck and then crawling under it and then getting back up and going to my tool box just to find all the right sizes for the tools I needed.
It may be written up somewhere else, but for the next person that needs to do this, you need:
15mm socket for the 4 bolts that hold the stock brackets on (I think it was 15 - I can't remember for sure now)
18mm open end wrench for the nuts that hold the ends of the sway bar to the links
8mm socket for the ends of the bolts that hold the ends of the sway bar to the links
8mm Allen socket to put the Hellwig bolts in through their brackets
The bolts that attach the ends of the sway bar to the links are weird. They have a smooth round head, so you can't put a wrench on it. The small end of the bolt is hex-shaped. So, you have to put an 8mm socket (or wrench) on that end to hold the bolt from turning while you use the 18mm open end wrench to turn the nut. Or you can hold the nut and use a ratchet with the 8mm socket to turn the bolt.
Anyway, I think it took me about an hour, all totaled. But, I drove the truck around some now and I definitely like the way it feels.