VW golf 1.4E central locking???

Hi I recently purchased a golf 1.4E X reg from year 2000 from the
internet. I was very surprised to find the car had no central locking,
surely a car from only 5 yrs ago should have central locking? I was
told it was becasue I bought the E edition, it comes with only the
basic spec. Does anyone else have a car, form such a year without
central locking? I have enquired about getting the locking installed,
but have been quoted a price of £300, do you think it may be possible
to install this yourself?

Thanks