SoR is super risky and no point in using them unless you transfer the free 80 to your main account.
Your better off to spend $10 for Battlechest (cant find a working $5 link for usa anymore)/ use it to create 2 different accounts and Raf link them together
invest $20 and have two 85s within 2-3 days. Then up to you if you want to spend another $20 for MOP