You have the minimum files necessary for what you want. Depending on the type
of hardware you are using, it may be possible to load some parts of AppleShare
PC into high memory (you need a 386 machine with a minimum of 1MB of RAM).
This would free up more than the 60K that you are looking for.
If you want to check the files you do have, you could re-run the Installer and
specify file services only, that will install the minimum set.