Linux Mint out-of-box install: How to Replace Cinnamon with icewm

I am currently using Linux Mint 17.2 Cinnamon. Nothing unusual, just the main download available when one goes to the Mint website. (I can update to the latest 18.2, if that is needed.) This is what I want to do: 1. install icewm 2. make it the default/only windows manager 3. remove ALL of what I do not need anymore Any answers for EITHER removing package no longer used after I switch to icewm OR removing any default Mint/Ubuntu packages a developer doesn't need would be appreciated.