I'd say wait on Craiglist until you find any old Mac (usually can be had for under $10) and then load the files onto it, Open in MS word 4, and save them as text only. Then get an external floppy disk for your new iMac, and the files should look like regular text files. Perhaps there is a more elegant software solution, but to find an old mac (free to $20) and an external USB floppy device ($10 to $30) will definitely do the trick - and you can continue to type on an old mac when you choose.