I'm not positive about sport tracs, but explorers of the same year had an adjustable upper control arm on the passenger side. Once the caster and camber are achieved on the driver side, the passenger side can be adjusted for matching caster.
Think of the control arm as a triangle. Now, if the front camber bolt is adjusted inward, this will pull the upper ball joint forward, decreasing caster angle. However, every time this is done the camber also changes. The adjustable upper on the driver side makes it much easier for the tech to achieve matching caster angles side to side, without going from side to side making adjustments over and over again.
Matching caster is very critical if you want the truck to feel like it is tracking straight. More caster on both sides will make the steering wheel return to straight with more force on it's own, so you can imagine how it would feel if the angles were not very close side to side.
The ride height should be adjusted first, side to side using the lower control arm bolt as the reference.
Then the steering wheel should be centered, with the alignment started off a centered steering wheel.
You should be able to get it dialed in close enough for the drive to the shop, but please do drive it to the shop. IFS is very difficult to get dialed in by eyeball and plum bob.