20,000 words is a lot of words - much, much longer than most of my stories. In fact, 1,000 words is longer than most of my Blakes 7 stories.
Combine that with the fact that it has to be set in series one (so no Del Tarrant, oh noes!) and it means I have to write something wholly new. It is hard, but I will win this competition so the world can read about Avon and the Planet of the Big, Gay, Long Space-Cats!