This was going to be a response to a PM, but I decided to put it out there to see if there were othes who needed anything (I'm going to regret this...)
I have a hard copy 1973-update edition 240Z parts manual, but I don't think I've got a genuine Nissan workshop manual for the S30 series. I've got Haynes 240Z & 280ZX(T) manuals. As far as what I've got on PDF is concerned, it's a fair collection - everything from the Model 31 Cedric (1963), 410 Bluebird (1964), 510/N510/P510 Bluebird, S40/A30 Gloria, Junior, VG60 Patrol, President, 180B (610), 200B (810), A10 Violet, GPA10 Stanza, 520/521/620/780 Trucks, Violet (710), A320 Cabstar, 1000, 1200, 120Y (Sunny B210), Sunny B310, C10/C110/C210 Skyline (inc. GC10/GC110 GT-R's), C20 Sunny Truck, C30/130/230 Laurel, C80 Truck, C141/C240 Caball, C340 Caball/Civilian, E10/F10 Cherry, E20 Caravan (Urvan), F20 Cabstar/Homer, V610/G610 Bluebird-U, GC240/GC340 Echo/Micro Bus, S30/HS30/PS30 (1972-73), S30/GS30 (1974-), N10 Pulsar, PB110/PB210 Sunny Excellent 1400, S10 Silvia, a 1963 Prince which I can't identify, S50 Prince Skyline, SP311 Roadster, T20/T640/T641 Homer, T40/T65 Prince Clipper, and T43 Prince to the T44/T440 Prince Miler Truck...