Would it work? Is there documentation available on how to setup something like 'central' on a private server, is there a mechanism to synchronize selected artifacts?
Well, you could become a mirror of central but, what's the point of grabbing ~10 GB of artifacts? You won't need all of them and the usual recommendation is to use a repository manager.
Actually my initial thoughts was:
- Use a Nexus connected to the internet outside the SEE
rsync
the content of this Nexus to a DVD.
- Copy the content to the Nexus of the SEE via a DVD.
- Repeat periodically.
I found this solution ugly but, now that we have more details on your situation, it might be an acceptable.