How do I just instal selected language options

Hi,

I accidently removed English (Australia) as a Language localization option and want to reinstall it. When I go through the install process from the OSX Leopard DVD I choose archive (I don't want to erase and I can't select update). But I don't have enough space to do the archive option.

Is it safe to choose the erase option and just select the items I want to install. That doesn't sound right.

Is there another way to just re-install the language localisation options I want?

How much space will I need for the archive option if this is the only way. Does it archive the whole drive or just the system files?

Thanks,
Jason