If your System images are good, I would inflate and write them to floppy by means of the BasiliskII emulator on your Sony.

The procedure will only work for 1.4MB disks of course. BII can write Mac floppies from a Windows or Linux host.

To tell the emulator about a inserted floppy, press Control + F1.

If your images are not good, Mac Anthology `99 DVD 1 would be a clean source.

Good luck!