I also have 32-bit office 2010 on my Linux distro (through PlayOnLinux), so which bit version shouldn't be much of a problem in itself. I don't have money either and it is a project that will is just for uni. The subject will be finished in a few weeks, and then all the data can be deleted again.
The link you posted looks very interesting, but I don't feel great about spending 30 usd for something I will never use again after a few weeks.