How to clear linux partitions but leave home untouched?

Hi all,

I have a kickstart file that I use to image our systems over PXE.
Currently, we use "clearpart --linux" at the top of the kickstart and
then "autopart" to create the partitions.

Is there any combination of commands that is similar to this, but
doesn't delete the "home" partition? I'd like to be able to re-install
a new version of Fedora onto a system, but not delete the users' home
directories.

Thanks,
-- Aaron