If you do it purely for profit home mining is not an option, unless you have access to real cheop energy (<$0.0.6 or so). You also have to invest in equipment and who knows how much it will generate per kWh within one or two years? Could be more if btc price appreciates, but also could be less if increase in hasrate outpaces that.
But building something like this is definitely a lot of fun and you learn a lot of it.