Water Pump Needs to be Replaced?

Doing a favor for a single mom w/kids on a limited budget. Anyway she asked me if I could do this repair for her and of course i said yes i could SO here I am and really just need the path of least resistance and your expertise on the matter. If I can avoid lifting or moving the engine at all , that would be great...if not , no worries.Ill get it done somehow. SO ya 2004 Olds Silouette GLS 3.4L water pump replacement