Looking at an 08 with 175k miles for around 26k. Very good condition. Think it's an ok price but not great. The engine ticks. Is that normal for these motors? I only have experience with the 4.7 in the 100 series.
I have an Amazon Green 08 and I've never heard it tick. With much saddness I have it listed for sale in the classified section if you want to take a look.
The 5.7 is known to "click" right after start up, until the engine warms and all the valves/lifters/heads expand to operating specs. It is a well documented fact in the Tundra forums. Clicking later on, after warmed up, might be something to look into. These motors have a phenomenal service history so far.