Sorry to sound like an advertisement, but Floppy Emu could help with this. You can use Mini vMac or Fuse OSX to mount a large HFS disk image on your OSX Mac, and copy all the files into it that you want. Then copy that disk image to an SD card, put it in the Floppy Emu, and run it in HD20 hard disk mode on your IIci. You could then run everything directly from the Floppy Emu, or copy all the files to the IIci's internal HD.
I've tried using ZIP disks as a sneakernet method for transferring files, and decided it was more trouble than its worth. Ethernet is a good option, once you get it set up.