If you have (a) you don't really need ( B) and vice versa.
What is Localtalk?
Any Mac with an inbuilt (not external USB) floppy will be able to write 800k disks, up to and including the "Beige" G3 models.
Most floppy Macs will quite happily read PC formatted 1.4MB disks, though. If you're lucky, even an SE. You can use these disks to transfer disk images from a PC. (NB exactly as downloaded from the net - ie do not attempt to uncompress them) Then use your Mac to create the floppies from the images.
Unfortunately PC floppy drives are physically incapable of reading, writing or formatting 800k Mac floppies.
What is Localtalk?
Any Mac with an inbuilt (not external USB) floppy will be able to write 800k disks, up to and including the "Beige" G3 models.
Most floppy Macs will quite happily read PC formatted 1.4MB disks, though. If you're lucky, even an SE. You can use these disks to transfer disk images from a PC. (NB exactly as downloaded from the net - ie do not attempt to uncompress them) Then use your Mac to create the floppies from the images.
Unfortunately PC floppy drives are physically incapable of reading, writing or formatting 800k Mac floppies.