steering overhaul

[Low87]

I've needed to replace my gear box for a while now, just added fluid for the time being. I put in a cheap PS pump last year to get me by when that went out. Today the PS pump pulley started squealing. I'm hoping to make it to the weekend before I have to do anything.

As far as parts & what to do, I'm looking for recommendations. Here's what I plan/hope to replace;
gear box
PS pump
PS pulley
rag joint (same as coupling?)
PS lines if I can find them

Any parts recommendations would be appreciated. I'll order from rockauto if I can get them here in time, if not I'll hit O'Reilly's. Other than the pump, I haven't dug into this stuff before. How difficult is the box & coupling?