try again, the 512 can use up to system 6.0.8, and 6.0.3, 6.0.5, and 6.0.8 can all be downloaded from apple's website (
http://www.info.apple.com/support/oldersoftwarelist.html) [seems that the forum updates an't all done yet, i can't add a hyperlink. in fact none of the buttons for post text modification work]. then the drive only accepts 400k floppies. so if you can find a little newer mac with floppy drive and internet, then you can make the system floppy. just be warned, that thing doen not have a hard drive. all software needs to run off the floppy, which ment alot of floppy swapping with only one drive. good luck.
btw, if you are unable to make the diskes you need, and really, really want to fire the old boy up, i might be able to dig up my old floppies and see if i can get one of my pluses fired up to make you a copy. i make no garrenty that i can. its been over 5 years sence i have even plugged in one of those things, and floppies are known for not lasting very long. just post here and let us know how you did, and if you want those disks, then we can arange to send you some. *****NOTE: this offer is for DonReactor ONLY! so please don't everyone ask me for copies. i don't have the time, or desire, to provide everyone with something that they can get on their own with a little of effort. i made him the offer because its for his school, and i know school's don't always have the means to do things like this. my school didn't, but i had a friend that did, and thats how we got alot of things like this for the old macs my high school had.