A friend in need - see text below

Apropos copy writing, yesterday a Professor from University College London asked me if I wanted to publish my MSc dissertation in a Colombian Urban Planning Journal he is guest editing. The problem is that the deadline for the submission of the paper is on the 23rd April and I am already overloaded with too many other things. As a copy writer - do you know how much it would cost to turn a 15000 words dissertation + 1000 word technical paper into a 5000-6000 academic paper? I really have no idea about these things...