If you contact Smith & Wesson, they will give you that information.
100-400 USD
100-400 or so
Stainless Steel Chief's Special
100-600 USD
It is a J frame.
Smith and Wesson Chief's Special Model CS45
100-300 USD
100-350 USD
Recommend you find a good gunsmith.
50-500 USD or so depending on specifics.
Someone over at smith-wessonforum.com will know.