As indicated earlier, the Macintosh computers between approx. 1991 and 1997 do have (built-in) floppy drives that can handle both 800K (DD) and 1.44 MB (HD) Mac-formatted diskettes. You can find additional information via the web page below.
http://lowendmac.com/profiles.htm
A suitable intermediary could be almost any machine from the mentioned era. It would of course not be bad if that computer has Ethernet capabilities and can be connected to the Internet (but it is not absolutely necessary).
I do not know the system requirements for MacWrite II, but I guess that a System 7.5.x machine would still be OK (and maybe even Mac OS 8.x and possibly 9.x).
What you do to begin with in a situation like this is to copy the diskettes onto the hard disk, and then onto 1.44 MB Mac-formatted (HD) diskettes (as backup copies). After that, you could try to install and run the MacWrite II program, and open the document. Look under the Save As menu for a list of file formats. Now, re-save (a copy of) the document in a generic file format (like plain Text, or/and Rich Text Format = RTF). Copy the document in the generic formats to 1.44 MB Mac-formatted floppies, too. If possible, send all applicable files to your email address as attachments. Also, if available, use a SCSI Zip 100 drive and copy the files to a Zip 100 disk (that disk can later be read by a USB Zip 100 drive connected to a more modern computer).
If files on your document disks for some reason cannot be opened by the MacWrite II program, the old computer may have ClarisWorks/AppleWorks that perhaps could be used instead.
If nothing else works, you may have to try to open the document on a modern computer. A 1.44 MB floppy can be read by a USB floppy drive (or you have been able to transfer the files in another way, as suggested above). For some details about the handling of MacWrite files under Mac OS X, the following discussion may be of interest to you.
https://discussions.apple.com/thread/3028054
Jan