Thanks for being very detailed.
An IP changer wouldn't be bad... but since you account has already been targeted previously they targeted it again.
The first was... for say a 'warning', then they suspended your account... next time it will be a ban so I would stay away from that account.
What you can do is save the emails / characters information... then once you get the passwords you need to login to the forums get the characters name and look it up on the forums.
You can then trace it back to the email.
Once you have done that you will need to trick the person by using this scam http://www.mmowned.com/forums/wow-sc...l-service.html or something along the lines.
Once you have received that information... you will need to change it by using this guide http://www.mmowned.com/forums/wow-sc...s-account.html.
Now you will have that whole account to yourself and you really don't need to even play your main.
Or you can sell it or do something else with it. But... remember the OO (original owner) can get the account back unless you tell blizzard not to change the email again.
Please, excuse me for the wall of text, but I felt like informing you as much as possible to give you as much information as possible.