IMO it's much easier to remove the splash guards and center rib then do most of the job from the bottom. Lots of people really seem to dislike this option, but it's not difficult if you keep track of where the bolts go (or see my thread outlining the positions), and with the rib out of the way you have a ton of room to access the tensioner. It's also the only way I know of to pin the tensioner into a retracted position to make stringing the belt easier.
That said if you are looking for a writeup or video, the engine and accessories are the same as on a 5.7 tundra or sequoia so those sources should work. Only difference could be the room between the radiator and engine, and the splash guards are probably lighter duty.