Holy moley, I remember not so long ago that we used them as frisbees because you couldn't give them away.

Oh yeah, see if you can get one of those Gregories workshop manuals for the combined 1000/1200 models. They are quite cheap & really really good. They have lots of pics & are writen for the home mechanic like us. I have a couple of different editions myself.
They often show up on e-bay, so look under 'manuals' [Datsun 1200]