W126 350SD 1991 thrown belt

I'm not exactly sure what happened with my car but I've heard it described as a thrown belt, anyway it broke and ripped my power steering pump off and tore off the belt tensioner pulley.
I'm in the process of putting things back together and noticed that I need a new AC compressor. Should I attempt to replace it myself if I have no prior experience with AC and don't want to buy a bunch of expensive tools?
Also, how do you get the high pressure hose off of the power steering pump where it connects to the pump reservoir?

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