Why not get a darkcoin wallet then use shapeshift.io to turn your bitcoins to darkcoins and then back to bitcoin, they will be completely mixed and no one can track them back to you.
There is no darkcoin anymore, also all this will cost you a decent % of your coins in fees.
Deposit and withdraw on BTC-e (or another exchange where you can create accounts/deposit/withdraw anonmyously) with an account made over Tor should do the trick.
not true, all you see on shapeshift is what you get, they even say so in their website, the only fee is the miners fee, which is ok , there can't be zero fees
also you don't need darkcoin, monero is vastly better