That's the wrong washer pump Tom - i doubt it's got enough grunt to operate the headlamp washers in addition to the standard washers.
When you say the upgraded washer jets, which ones do you mean?
Also there is a non-return T-piece valve on yours, between the washer jets on the underside of the bonnet - just above the dizzy cap! perfect positioning because when this valve fails, it's designed to leak! Operate the washers and it squirts water all over the dizzy cap!
These valves are about £4-5 and worth changing as a precaution - also if you get the correct washer pump, the OE plug will just plug straight into it.
Any idea where your low washer fluid sensor has gone?
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PS - the camshaft doesn't look that bad to me, usual wear marks but nothing to give a ticking noise, the ticking noise is more likely your exhaust.