Water Pump : 16100-39485.
Timing Belt : 13568-39015.
Idler : 13505-67041.
Tensioner : 13540-67020.
I always replace the Idler and the Tensioner when doing this job. I have found that the Tensioners die about half way through their next journey.
I also recommend that you use the genuine Toyota timing belt. They are a quality item.
To do with the time that it takes, like, who cares, I mean really. Just do the job properly, as if you don't, you can right off the cylinder head and the block, the pistons.
Nothing like a job done right, especially this job.
The other thing that I normally do, if budget is there, is to replace the camshaft seal.
Seal, oil for camshaft : 90311-32019.
Torque settings.
Water pump : 13Nms.
Two bolts for bracket : 26Nms.
Idler bolt : 35Nms.
Tensioner bolts : 13Nms.
Camshaft pulley bolt : 96Nms.
Retainer bolts : 10Nms.
I use Locktite Grey Max if doing the water pump, for the re-sealing of the retainer.
Hope this helps, the Roo.