it would be much easier to replace the center link because you could get your new one setup exactly like stock (match length and all that) and stab it in there. I'd definitely recommend new tierod sleeves as well
Make sure you know which idler arm you have there are two different ones, with different spacing on the mounting holes.
Get a good solid puller for the pitman arm, and a good grease gun to lube all your new parts.
and I recommend using a prybar to push up on the tierod, then use a hammer and smack the spindle where to the side of where the tierod goes through it and it usually comes out in a hit or two.
The upper ball joint/ upper control arm comes all together even if you get a moog. No replacing just the ball joint on it.
If you dont have yet, install a set of camber bolts in the upper control arms to help get the alignment back into specs easily.
Also the sway bar should be fine, just pop some new bushings and endlinks on it
Have you thought about replacing the coil springs? I dont know that it needs them, but something that would be easy to do while you have the front end torn down.
Whew, okay i think im done now

-Patrick