update!
i did an electric thermo-fan conversion just to see if i could do it lol. and it works a treat! it's a 16 inch sucker.
i held it up by putting to bolts straight through the radiator on the right side and good old trusty zip-ties for the left side. the pack didnt come with any instructions or diagrams for the relay so i just had to figure it out which only took a few minutes. i am yet to fit a thermostat switch so for now, i have crimped an alligator clip to the remote wire from the relay and bit it onto the back of my fuse for ignition. so therefor the fan turns on when my key hits "on". this works ok for me at the moment but will eventually get the thermostat switch.
i found that i could take of the old engine fan and use the same spacer and bolts to go back into the water pump. too easy!
i have also replaced the dead master cylinder, leaking calipers on front, and leaking drum cylinders on rear. had to replace one drum cause it was completely shot. all new shoes for the drums and pads for the front. replaced the tail shaft with my spare one. there was literally 4mm play in the front uni joint and it had bit of metal sticking out of it!!! car runs smooth as now with no shakes. and is probably the best stopping datsun in town lol