That is a fitted price, when i looked into getting mine done at a garage it was an entire days labour to have the job done. Ford quoted me £1250 Fitted, cheapest i could find was the £800 (including import tax) so instead i spent £800 on importing a solid lightweight fly and stage 3 kevlar clutch and new slave cylinder and fitted it all myself. Fit and forget and the fly will transform the car.
I did the job over a weekend and refurbished my hubs, shocks calipers etc whilst i was at it, probably could have done it in a day.