As Gijs noted in his blog post, most of the packages we ship have 32-bit versions, so it's plausible to have some sort of "lite" 32-bit package where we ship what we can and omit the rest.
A rough idea offhand of what would need to be done:
- Finding 32-bit versions of whatever we can
- Updating the packaging script to create either a 32-bit or 64-bit version and deciding what to package accordingly
- Updating the installer to allow 32-bit installation where appropriate (requires Win7+ 64-bit at the moment)
At least offhand, those are the main things I can think of. They certainly seem doable assuming someone has the time to invest. That person isn't me, regretfully.