I'll definitely try that along with disabling the injectors in the 2 and 4 cylinders, one at a time. The FSM says that if the sound is diminished when this is done, it is probably a rod or main bearing. i hope to heck that isn't the case -- it'd be some heartbreak to have to tear it all down after just putting it together.
So you didn't think that the clicking/tapping/forceful tapping was rod related?
Thanks for the help, definitely appreciate it an I'll keep the thread informed.