The OP has forgotten one critical part in the parts repair/replacement. If you don't replace the idler arm, you will be also wasting time and money. A worn idler arm will allow the toe to change while you are moving and still cause similar tire wear. It will also cause wandering and vague steering. Idler arm wear is very common.
Similarly, the pitman arm needs inspection and replacement if worn. Based on the condition of the rest of the steering and suspension parts, it is almost certain to be worn out. A loose pitman arm bushing will cause vague steering.
I would choose to not replace the upper control arm bushings ONLY if they were relatively new. They can move around if the rubber is old.
Bottom line: I would be taking it ALL out and renewing it all based simply on the very bad condition of so many of the parts, the general age of the car, and the present overall condition of assembly.
