JPNZ has two manuals available. The Owners manual (which I have purchased) is your basic manual which would come with any new car - basic operation car, radio, lights, brakes, bits and pieces, location of jack blah blah blah. The other manual available is the Engine Service manual (500+ pages and just about enough info to remove and install an engine.
BE WARNED - I have looked extensively into the legal side of this and any copying of any manual and distribution of it (even if it is a JPNZ manual from New Zealand) is completely ILLEGAL. The fines if caught with or distributing an illegal copy are just not worth it. I think that NZD$250 or AUD$225 for an engine manual as rare as the R33 is a bargain.
This has been discussed before on the SDU/SAU forums and a thread has been closed by a moderator due to continued discussion of copying of manuals.