Have you been supplied all the images and text for the job?
Also, have the pages been set to a template which you will follow etc?
A day rate is OK, but £200 a day, £1000 a week sounds OK, but depending on your speed, I think I could bury it in a week with no other interuption. So £1000 would not be enough for me, without wanting to sound greedy!
There will also be no doubt amends to make etc.
Plus consider tax to pay after the job.
Not for me to say, but I would base it on an agreed hourly rate of approx £35. That way, the clock ticks at your own choice! ;)