I doubt you'll get banned.
But Yeh change name change everything!
And I don't know if you got a whole month, why not make your own character and only take his gold? :P and other stuff.
Considering the fact that you'll be paying for tranfer and everything else, I suggest Selling the account so that way you get the money and from there you got two choices.
Powerleveling
or
Buying another account.
1 month is plenty enough for the money to become legit. and if your friend asked, just tell him you got hacked ^_^