I had a 1972 240Z in the past.
Wonderful car if the frame rails aren't rusted out, had mine welded at a place that welded flywheel teeth without removing the trans.
I think I still have a Chilton manual if you need one.
Think I still have mine from the first 240Z I had - but I'll check and let you know.
I would appreciate your input as a consulting engineer from time-to-time once I start in; parts are hard to come by, and I'm toying with several 'mods'.
Something you could get a peek at one of our future meet-ups.