i did mine a while back eng mount has to come off,alternator belt ,alternator and bracket has to be removed. timing cover then belt,
then there is inner covers / casings, to expose chain wich goes from crank to pump.
under the rocker cover the cam locks in place with a flat bar at gearbox end of cam
the pump is a six mill drill bit if i remember right and the cranck locks with a tool or (home made via bolt) behind the alternator bracket i found it easyer to buy the manual for refrence and it tells you how to make a locking kit.
haynes manual halfords 20 quid