I have done this type of trade before, What i did was i had over 7,000 Gold in materials that i traded for 3 account transfers, I gave him 2,000 Gold cash to start and he xfered one account that there showed me he was legit, plus he had rep to start, i then gave him the other 5,000 in items and he did the 2 xfers, all in all it was a good trade, for an account i would imagine, i would have the person allow me on the account to be sure that the character and account exsists, once i verified that i would then give him say half of the items, and have him change the email, afterwards give him the rest of the items, and then have him give you the sqa.