The scenario:
I have:
1 online&active PC with this years FTP data
1 online&inactive PC with the company's past FTP data recovered
1 offline&inactive NAS with ancient company FTP data
1 online&inactive PC with retrospect user PC data backups
1 3TB NAS ready to be offsite backup
How do i set the infrastructure to simplify and backup all this stuff and still make it accessible on a moments notice?
How do i combine the FTP data in a way that i can get to my current data and still have the old data online and available in a way that if everything is backed up, it's not just everything in one jumbled bowl?
hardware
prices 
