Alright, I should thank most everyone on here for their input on this, but I decided to go with the TRD setup.
The rant begins here: I found a serious deal on the TRD, and that made my decision for me. Found on eBay
, from a toyota dealer in Miami. You can probably figure out the rest of the story from here.
They shipped it to me fully assembled. With only the ends plugged, and a single layer of bubble wrap over the chrome tip. If I cared enough, I would launch it back to them right away. The chrome tip is dented with a deep abrasion. As are the bends in the system that you would expect to get if you shuffled it back and forth on the floor of a warehouse.
I'm not a guy who keeps his truck spotless like a show car, so I'll keep it. If my job settles down enough, I might do a step-by-step install.