After you have downloaded Windows 8, you can activate easily by downloading KMSnano version 15. Just run it and within a few minutes it should be done and Windows 7/8, Office 2010/2013 should all be activated. Be sure to temporarily shut off the Windows Firewall Service and shut off the "Smart Screen Filter" so the activator can work properly.
Then use Stardock Start8 to get rid of Metro
Cheers