If I have the part that needs replaced for camshaft sensor what would the cost be

Why are you replacing it? I would say it's highly unlikely it needs to be replaced. If you are looking at a diagnostic trouble code suggesting loss of cam sensor signal, it's likely for some other reason. That said, here are some shops near you that you can ask for their labor price and if they will even install your part (some shops will not do that). https://repairpal.com/repair-shops/chevrolet-repair-and-service-in-henderson-nevada