The disks arrived today, and I'm pretty pleased. The 12 800k floppies all work, and I took Disk Images of them so I can store them securely. It is System 7.0, and it all works perfectly!
The System 7.6 box was damaged, so I took off the shrink wrap, but everything inside is in as new condition. All the manuals, CDs, floppies, warranty cards, even a small brochure for the 'new'G3 iMac.