I'm not in the LA area unfortunately and if you end up in San Diego county doing the work I'd gladly give you a hand. I've done all that work and it'll likely take a few days to do all of that.

In very rough estimates of time it takes to do those jobs I've list them in the same order.

1) Rear axles : Half day ? You need the right tools for this job to go easily. It is imperative for the people who do this job to understand how the rear axle seals actually function.
2) A few hours.
3) A few hours.
4) Day ++. Just swapping the front lower control arms is basically a full day of work. Pressing bushings isn't the easiest thing to do as well. My recommendation is to acquire a set of control arms and press out those bushings before hand. You can acquire a full set of control arms at a junkyard up there for ~100 or so. The front control arms is going to be harder for an average joe shop to figure out since you need the right tools or the bottle jack method to get them out.
5) Day ++