The plan is to get it working on my Atari Stacy which theoretically could be turned into a Mac Portable of sorts

I had one of these in the late 80's which I ran using my ST or STe. It used to get right up the noses of the Apple geeks as it had a bigger screen and ran faster than the Mac plus (which it emulates), not to mention it was cheaper overall.
So if anyone can lend, sell or provide me with copies of the discs I would appreciate it. I can supply blank floppies if required.
Thanks