just want to bump this to include a few details incase somebody finds this thread by a search.
there is no machined hole in the crank to insert a timing pin.
a crank web rests against it at TDC. the hole is in the 2 litres.
you have to bully 2 core plugs out of the head to get the cam shaft locking tool in. you get new ones with a cam belt kit.
oil leaks from cam seals are common im told (the reason i done this job)
also, the water pump was not weeping like i thought it was, it was coming from a rubber O ring on the end of a pipe travelling accross the engine block. easy mistake to make as its in exactly the same location.