Sorry for scuttling off like that, have just arrived back from holiday in Australia. Thanks Helen, yes, I think that a word version of that in the moodle docs as you propose would be good and hopefully useful for anyone that wanted to adapt it to their own need.
That rough-out of topics for the documentation student bit looks like a good start as well. I will have a look at it over the next week or so and start padding it out. My wiki skills are not so good so it will be a learning curve. Presumably there is a way of tracking how many users actually use it (once it has some content)?