Hey everyone. I've been lurking on this forum for quite some time so I figured I might as well create an account

I will finish my A+ Exam Wednesday (I did really good on the first half, but my wife and I recently had a baby so I stopped studying) and feel like my next steps are MCSA Windows 7 by July, and upgrade to MCSA Windows 8 by August, and at least 2/3 of the exams required for MCSA Windows Server 2012 by December. I plan on doing everything self study, by either reading books or watching training videos. In 2015 I want to start working on MCSEs.
For my background, I have 3+ years of helpdesk experience.
I have too many questions but here they are:
Does 7 months sound like too short of a time period to study and pass six Microsoft Exams? (70-680/685/689 then 70-410/411/412)
Would I benefit more to upgrade to MCSA Windows Server 2012 from 2008 or is 2012 only okay?
Having only an A+ and the MCSAs, would that make me a viable candidate for a System Administrator or at least a Junior System Administrator? Am I hurting myself by not obtaining the entire CompTIA trio?