Im looking to upgrade my skills to MCSA 2012, but I find myself in the position of not having the MCSA 2008:SA, but rather because I have the Enterprise Desktop Administrator:W7  I have an upgrade path to MCSA 2012 via the 70-417 exam.
A few years ago now I did pass the 70-640 exam (AD Configuration) in the R2 variety, but just failed the 70-642 and fell off the study bandwagon at that time.
At the moment im just consuming as much content as I possibly can on both the MicrosoftVirtualAcademy, Channel9.msdn.com and TechNet Labs sites that are relevant to Server 2012/R2.  I have the MS Exam Ref book, the 410/411/412 MOAC Labs guides and the Panek All in One book for the 410/411/412/417.  And of course ill be going over the stickies here 

By having the MOAC and TechNet guides ill be able to have some direction when I lab them.
I am interested in hearing any thoughts on how I should look to study the 70-417 exam.  I would also rather just sit the 1 exam rather than doing all 3 exams (Exam cost in Aus is $209 a pop, so it would be more expensive to do all 3).  Are there any other specific things anyone can recomend and what do you think is a good timeframe for this goal? (I hear blogs of MCSA in 90 days)
PS: I would be able to commit about 1-2 hrs a weekday and 6-10 hrs a weekend.
Thanks