Nah, ma mates just think they know what they're doin but in reality don't really know much more than me, i think you call them tyre kickers

We can all do stuff like changing plugs, oil, brakes, starter etc, but for something like ignition timing i think you need to know what your doin.

Sure i've got the haynes manual but the terminology it uses can be a bit confusing if you don't understand it in the first place. It just assumes you know what your doin with comments like 'Step1, before doing this, remove the gearbox.'

Plus i would think a qualified mechanic would have it done in no time so hopefuly wouldn't be too dear.

P.S. about your wiring diagram for the alarm, you can find ANYTHING on the net even if it aint meant to be there