custom Office 2008 and iLife installs

Thanks to the info here and the webcast I have been able to make new images with a Leopard base OS, the Apple Updates, and the full Office 2008 and iLife 08 installs. I am wondering though how to go about cusomizing the installs for Office 2008 and iLife or any other apps already in package based format (iWork, etc.) For example, in the 2008 install I would normally deselect the proofing tools for all the languages except for English. In this workflow, is it as simple as removing those specific packages from the Office 2008 install package?