Custom RPMs - Part of Installation (not post)

Hello,

I'm looking to install Fedora with updates and custom RPMs/repo included 
as part of the kickstart.  The portion of including the updates is 
fairly easy.  However, the custom RPMs (via a custom repo) does not seem 
to be as easy as it should be.  I'm needing to disable the gpgcheck or 
add a key.  But, the issue is, I do not see go to disable the gpgcheck 
or add the gpg key.  Am I missing some piece of vital documentation?

Thanks,
Phillip