What these lists also don't take into account:
Clutch - if the motor is out, do you really want to leave that old clutch on? or replace it while everything is apart? Would suck to do all that work and then have it slip as soon as you turn the boost up.
transmission - again, the hard work is done and its out of the car. at least inspect it.
injectors - at a minumum clean them (~$90 at
www.cruzinperformance.com)
gaskets, hoses, etc., aren't cheap for the real Toyota versions
re-wire your knock sensors (or atleast inspect the wiring) Save a lot of hassle later.
There is alot that goes into a rebuild besides pistons, rings and bearings. If all your other stuff has been recently replaced, then you probably don't need to do it again. If not, add it to the list. Not trying to discourage you, but there are a lot of costs that go into refreshing an engine and then making sure you don't have any problems when you get it back together.
Always plan for the unexpected.