The bus design is completely in the public domain. The disclaimers in section 11. and 12. of the GNU public license apply in both cases. There are drivers and programs for most of the hardware described below available. You can have it as gzipped postscript, csa1.ps.gz . A description of the bus interface is in bus.html .
All ICs are standard ICs.
However, getting documentation for the 8bit stuff is getting more and more difficult. However there is a separate 74LS610 page . Sometimes they are mentioned in the parts list, though. These are always implict, so I didn't bother drawing them. But you should use them anyway.