Very good work! Thank you.
I have one question though: what pools (oir just one pool) are the best for this rig?
I tried GHASH.IO but my earnings didn't cover my investment.
You have to mine altcoins, not bitcoins directly. You choose an altcoin and mine it, then sell it and if you choose wisely it cover and repay your investements manytimes.
Im mining on ghash.io, eligius.st and many other pools btc but most of the time those different altcoins.