Honestly... if you want ETH you are much better off to just buy it with the money you intend to spend on a mining rig. Or mine another coin which is more profitable and exchange it for ETH on one of the ETH-centric exchanges. It's way too late.
I was mining ETH almost 2 years ago and I mined an amount which would now be worth $250 000 but I sold most of it when it reached $50 or something. I currently mine equihash algorithm based currencies and exchange them for ETH, BTC or DASH - or sometimes I just mine something random and HODL it just in case I get lucky.
I believe that if you look at all the working tokens and projects already running on ETH, if there isn't another major catastrophe like the DAO scam - ETH could easily reach BTC prices, but mining it directly just isn't worth it any more unless you have free power and free hardware.
Thank you so much for sharing, then I will look in you other suggestion and will search more of it. Just to get the opinions of other. Godspeed