I believe so, yeah. From System > Backups they'll need to redirect a backup to an FTP or similar, unless they do that already then it's easy. That will give you all their settings too, so you may need to tweak it after importing to fit to your network.
There's also an Export Data option as the bottom of the home page, but I don't think this can be imported back in (never tried it that way before). Could be worth considering if you just want the data. I'd go for the first option first though if you can.