replacing pitman arm?

My husband thinks that the pitman arm needs replaced.... we have a 2001 kia sportage. how can you tell if it is bad, and how bad of a job is it? what is required, and approx. how much will it cost? part wise and labor wise TNX.
Went to replace universals and have been discovering more and more stuff that's needing replaced, i'm going insane!:banghead: