To install without documentation and optional modules, 32-bit LispWorks requires about 45MB and 64-bit LispWorks requires about 60MB. Installing the documentation adds about 110MB and the optional modules about 15MB. A full installation of the 64-bit Enterprise Edition with all documentation and optional modules requires about 185MB.
The documentation includes printable PDF format manuals. You may delete any of these that you do not need. They are available at
www.lispworks.com/documentation
in any case, and the same manuals are also available there in PostScript format.