Awesome tutorial!.. I have run into a problem with the wsus part.. I followed your instructions, but only added a Primary with no CAS, I using sccm2012 with server 2008r2..
i tried to have it push the sccm manger app, but when it tries. it gets the following error.
Fault bucket 3031434095, type 5
Event Name: WindowsUpdateFailure
Response: Not available
Cab Id: 0
The wsus is on the sccm2012.....
to add.. the test machine does find the update, and it says 1 of 1 update, and it does try to download, and than it gets stuck at installing updates (Configuration Manager Client Installation).. it stays there for a long time, and times out...