I have about 300 sites I need to move to a new server but transferring the backup file (of 5GB) is going to be rough. Can i backup the sits in chunks of 50 and then restore them on the new server? Or when you do a restore does it have to be the complete server setup? I am worried that if i transfer 50, restore and then transfer another 50 and restore it will overwrite the first 50 i restored. Hope that makes sense!