As others have said, this is a rather excessive amount. But are you both QUITE SURE it ALL has to be done? Could this possibly be a list of tasks to choose some from, but not have to do them all?
I was a primary TA / helper for over twenty years, but mostly with R, Yr1, Yr2, so don't really know what Yr5 and 6 expectations were, but not as ambitious as this I wouldn't have thought.
When working with 'reluctant' writers I would often get them to dictate their ideas to me, and I would type them on the computer. For many children, the ideas are there, but it is the physical task of writing that is the problem.
So if you have a tape recorder, or a phone that records, see if she can DICTATE the texts, then write or type later.
I have just jotted down the tasks, and I make it that there are TEN tasks, which if each is an hour is TEN HOURS in total. Do bullet points, and a page of paper for each one, then jot ideas (not full texts yet) for each:
1 Imagine place;
2 Draw map;
3 Two pages on geography, people etc;
4 One page Autobiography of someone;
5 One page story;
6 Convert story to comic strip (? or film storyboard?)
7 Newspaper front page;
8 Poster advertise place;
9 School report of child;
10 Make cover.