There isin't a whole lot you can do because no matter where the gold goes blizzard can track it. You could try and make it legit by getting a friend or another pc that has a different ip then the one you are currently using and buy stuff on the AH, then invite him/her to a group and make some BS story that you are quitting the game and you no longer need these items. just make sure you get the other to play along as well >.>
just an idea, thought id give my opinion im sure there are better ways
PS if you do find a different way and it work make sure to post back here i would love to read up on it.