I've taken a hardware approach to that problem (Our depot is currently 21 GB). I haven't done it with a server, but I have done it with remote user's desktop machines.
- Copy the entire depot to a 32 GB flash drive or portable USB disk.
- Send the drive to the person who attends to the remote server physically and have them plug it in.
- Remote in and install SAS.
- Have them send the drive back.
It is not elegant, but it is quick and has proven effectiveness.
Doc Muhlbaier
Duke