All sorted.
The pump was stuffed as the feeder hose was brittle and leaking.
Forgot to mention symptoms; the old pump was making a whining sound when turning the wheel which was quite difficult to turn most of the time.
Should be a 4 to 5 hour job with the right tools etc, had to get my neigbour to give me a hand with the high pressure hose bolt though (quite tricky).
And yes you do have to take the cross member mostly out, or you could just take it to a mechanic, I was quoted $250 NZD for labour.
Good luck!