1985 K20 Suspension redo

[Sczahra]

Ok, so I've got a 1985 K20 that Ive been playing with once a week to bring it back from the dead.
It runs fine, and I'm willing to overlook the fist size holes in the fenders, because first i want it to
ride good. I haven't actually driven it yet, because I've gotta tie up some loose ends to get it inspected.
The thing sat for ten years, and it shows. I need to know how i should go about replacing the suspension
parts in order of importance because I'm on a tight budget. And i don't wanna lift it, just basic stock
suspension replacement.  Also, it's probably going to have a truck bed camper in the back once its road worthy.
Thanks guys!

[Engineer]

What needs done?

Ball joints, tie rod ends, and shock absorbers would get my attention first.

[enaberif]

ujoints, ball joints, tie rod ends (left, right, and drag link)

That will make any old truck feel new again.

[Irish_Alley]

then a front end alignment

[Blazin]

Unless the springs are bent, broke, or sagging so bad that the truck does not sit correctly they are probably fine. I would pay attention to steering, brake, components first. Maybe all new shocks. Coil over rear shocks wouldn't be a bad idea for the extra camper weight.
If your future plans are a slide in camper might want to plan on new rear springs, or all new springs down the road.