Windows – How to make Office Home and Business 2013 Click-to-run work with Google Apps Sync

I'm a big fan of the Stack Exchange community and this is my first question, hope it is appropriate to ask it here.

I've bought four retail boxes of Office Home and Business 2013, just to find out after a lot of research that it is a "click-to-run" version, which is not compatible with Google Apps Sync. I've called Google Apps support and they say I have to ask Microsoft for an .msi based version, which I did, to no avail: each Microsoft support agent said something different; one pointed me to forum pages, another said he had never heard of .msi versions, and yet another one told me I had to find an .msi "transformer", which was from third parties, and when asked where to get it, said he could not reference or offer help for third party software.

One of the links provided by the Microsoft agent pointed to this article which applies to Office 2010 versions, not office 2013. (http://office.microsoft.com/en-us/excel-help/click-to-run-switch-to-using-an-msi-based-office-edition-HA101850538.aspx).

Another one directed to a forum which then directed to a preview version of Office Professional Plus 2013 (http://technet.microsoft.com/en-us/evalcenter/jj192782.aspx), which is of no use to me.

I've found links to original ISOs for Office Professional Plus 2013 in this site, apparently from legit sources (http://www.heidoc.net/joomla/technology-%20science/microsoft/73-office-2013-direct-download-links), and they have .IMG files for Office Home and Business 2013, but after downloading the IMG I found out it was another click-to-run version.

Anyway, to summarize, does someone here know if what I'm looking for even exists?

Thanks a lot in advance.