So i was planning to make a mining rig with 5 rx 480's i am kind new to this mining thing but i had done alot of research on it and i think i am ready to jump in the mining pool i am thinking to start with is nice hash miner but is it profitable in 2017? and btw electricity is totally free for me long short my friend will host this rig for me on solar power and yeah.. is it profitable for me?