Upgrades while swapping?

Hey guys, another question.

2002 1500, standard cab, short bed. 4.3 4l60e to 6.0 4l80e soon.

When doing this swap should I go ahead and put a torque converter with stall on there?

Basically I'm asking what I should go ahead and upgrade while I'm doing the swap to make it easier, and what will be ok to wait and do later on?

This is my plan so far (not all immediate):
LQ4
4l80e
Stall 3k
L92 heads
New cam
Nelson Tune
Electric fan
Long tubes and dual exhaust
Cold air

I don't plan on doing any kind of spray or boost. All engine.

Big trans cooler(40k is most common)
with the cam hardened pushrods and valve springs
ls7 lifters
ls2 or better timing chain
Trunion upgrade
Bigger injectors 36lbs should be plenty.

And you have to change intakes with l92 heads

Ok awesome. In what order of priority would you put these upgrades, ie: immediate, whenever, these two together...

Work on tracking down a motor/trans combo you are going to use first, then worry about add on's. sometimes it's best to just swap over " good running parts " then " upgraded " parts. It will help eliminate you chasing your tail thinking that a "sound " is normal when it's not. Basically get it to run first then swap parts over. But first swappable piece CAI. Always good to have one :)