It will be profitable at first but later go unprofitable, before it will ROI itself.

To calc just pick up some online calc - like whattomine or coinwarz. See how much you make. That you will make for 2 weeks. After difficuly adjustment you will make about 5% less. Thena agin after two weeks 5% off again. I use 5% for my calc. It can be like 2% only or sometimes even more than 10%