I would make sure the crank sensor itself is clean and free from crap, also check the condition of the pulley, if the lugs are damaged then it won't pick up anything when you turn the engine over. I don't see a real need to remove it, i would do a search on here to find out what the correct gap is, i can't remember off the top of my head but i think it's 2 mm or something like that, but i don't think this is too critical. The crank sensor connects into a white plug under the inlet manifold/behind the distributor, maybe worth disconnecting that and checiking the contacts are clean.
Like i said before, perhaps it won't cure your issue, but it could definately be the cause, so if everything is ok, then atleast thats peace of mind that this area has been covered already, and you can start clutching at straws agin Lol....
I'm at work so i can't see the pics in your post unfortunately.
When you turn on the ignition the pump should prime for a second or so and stop, it doesn't get a constant feed unless the engine is running, so BE SURE that it's definately not getting any power , i fell foul of this already (get a mate to lie under the car at the back and listen (or get a voltmeter on it) while you turn the key and see if anything happens.