The upper shock nut is something else to soak in penetrating oil, unless they've been installed recently. From adjusting the KONIs on my Camaro, there should be enough friction between the shock shaft and the rubber bushing to keep the shaft firm as the nuts are removed. Usually, an air ratchet will spin the nut off otherwise. KONIs used to come with a black cap to put over the nut, to keep the stud/nut threads clean. Your experiences might vary.
Strongly concur with not doing the final torques on rubber bushed items until the full vehicle weight on fully supported by the wheels. The desire is so put the torqued rubber bushings in about their centerpoint of suspension travel, rather than having them "tight" in their particular position, then them having to twist against the vehicle weight. Which can lead to reduced life span of those items.
Just as you measure the number of threads on the tie rod ends (and similar) so you can put them back in very close to the same position, with the new parts, ALSO measure the number of threads sticking through the torsion bar adjusting nut (of the torsion bar adjusting bolt). Same principle. IF you do well, you can possibly drive the car around a bit for everything to "settle out" before getting the final front end alignment done. Possibly not having to have it done twice? Just a thought on that.
AFTER the front end rebuild, then focus on the rear leaf spring and shackle bushings. That will tend to finish things off so that you won't have to worry about that later on! But possibly not as important on a Chrysler leaf spring rear suspension as a GM rear coil spring suspension (with the bushings in the rear track bar and such.
Be careful and enjoy the experience!
CBODY67