Thanks Dog Cow,

Yeah, I did some research some time after my post to find out what I needed to know about a Mac Plus, and to my surprise I saw that, as you said, it uses an 800k drive! The Plus, in fact, seems like a bit of a mixture between a 512k and an SE--which makes sense, figuring that that was the order the machines were respectively produced!

So I will look for an Apple IIGS drive. Thanks for that tip.

And I'll post back here with pictures of the Plus once it arrives!

-Apostrophe