First off I'll say that these LED bulbs are the best quality replacements I've seen so far. They weren't any brighter than the stock setup however, and had viewing angle limitations. Looking down on them at a high angle, like seeing them from a truck cab, the brake LED was about equal in brightness to the stock bulb, but both the stock tail and brake lights could be seen better at a lower angle, which means they could be seen from farther back.
Bottom line is that I can't really endorse the use of the brake and the taillight LEDs. I'll use the turn LEDs, and use one of the taillight LEDs for the license plate light though.
If you're not the tinkering type and just want a no-fuss install, go buy the pod setup and be done with it. If you like the trial and error approach, and a good challenge, (like me), then this could be a fun project. I'm going to poke around at the local commercial truck dealer for more LED ideas. They have lots of LED demo lights in their showroom. My idea of fun anyway!.