Well truth, right now it’s profitable with an average return on investment 6-8 months depending what your starting with and what your willing to pay.
I was able to locate used parts check my article my first article I will be rewriting eventually in a more how to format 😂.
In short if you have a gpu try either minergate or nicehash you could toy with cpu mining but it’s really not worth it unless for a little boost $.20 ish a day on xmr. I have killed alot of free devices.