Multi-Tenancy in SharePoint 2013

Hi,

I'm trying to segregate a SharePoint environment using Spencer's scripts and explanation. From what I understand

http://gallery.technet.microsoft.com/scriptcenter/da3d9ace-0b00-435e-8cb8-416a56c5bf63 would work for 2013 out of the box.

Then I would need to replace the Search portion in this script http://gallery.technet.microsoft.com/ScriptCenter/04d41bf9-1b9c-454e-8695-575acef82bfd/ with the new one from here http://www.harbar.net/articles/sp2013mt.aspx and

finally provision the tenants using this  http://gallery.technet.microsoft.com/ScriptCenter/1a249725-51d6-4e6f-86c6-831357c5bbd2/

Can someone please second me on this?

Thank You

Favad Q