Hi Smit,
As you may remember I have had brake problems.
If it is the electric pump only that needs to be changed its not to bad.
(Although at present I havnt got round to refitting it!)
The brake system is in 2 parts. Part one is fitted to the car, Part two is has the motor & accumulator on it. From memory there is just on bolt that holds the two parts together + you will need to disconect the brake pipes for that part. (one pipe has a R clip to remove, then wiggle the pipe out)
Once apart the motor is held in place by 2 bolts.
As far as I remember thats it.
Good Luck.
Gav