Mark,

Those 'wear' spots don't look that bad to me. I think I'd just take the risk of putting the new components into the old green cup ... but that's just me.

Now this is from the dregs of my memory so ...

You only need to break your ball joints free if you're pulling the axles out of the diff housing. Also, you may not need to break them all free. There's a coupling that bolts to the frame with 4 bolts that are much easier to remove & will allow enough movement of the center link to allow for the axle housing to be dropped.

In order to remove the axles from the diff housing, you need to unbolt the differential brackets from the frame, then unbolt the brackets from the axle housing. That allows you to remove a clip ring that retains a bearing. Once that is removed, you can slide the axle out.

I also ran into a snag that when I dropped the axle housing, one of the green cups wouldn't clear the Lower Control arm. I ended up just grinding a little off of the LCA to allow clearance.

These 3 files are kinda the gospel for CV's & stuff.