If I got quoted that sort of money I'd be running away from those clowns as fast as I could, They must be a right load of cowboys.
You going to have to spend at least £300-£500 for a good clutch that will last and another £300-£400 for someone to do the work for you.
Or are you just trying to do it on the cheap so you can get rid of the car and pass any future problems onto the next mug that buy it off you?, If you can't afford to do a proper job on the clutch you shouldn't even have a pulsar in the first place, because that's one of the cheaper jobs.
Rob