Install/Update with local repository

I have 40 computers upon which to install/update 13.2 (currently at 12.2/13.1) with extremely limited internet access. I have the install DVD, but I want to install a repository that I could use for installing and one repository to keep everything updated. That is, I would regularly update one repository and then all the other computers would update from that one local repo. I have used this technique before using the ‘update’ repository, but it does not give a complete update. What rsync command (update directory) should I use to fully update a local update repository? Here is the command I currently use:
rsync -rlpt rsync.opensuse.org:opensuse-updates/13.1 /dest-path-to-repo --delete-after -hi --stats --progress --log-file=/log-file --exclude-from=/tab-file
Thanks, Do