Hi,
This is fairly simple project that can be finished in a couple of hours. There is available Arduino library for current sensor you want to used over there(we can looking for it).
I have became firmware engineer since 2012 and started using Arduino since 2013. I'm professional firmware engineer, So I'm not depends on one library. if there is needed I can use direct register programming. this is my daily project.
let's discuss this project furthermore over chat.
Best Regards,
Rijal