Well I did get the car going, I used some hot water over the fuel reg and cooler, glowed the engine a few times and kept cranking with my foot on the floor. Once it was running I just slowly kept bringing the revs up as I didn't want it knocking too much. I've only got 3 glow plugs connected at the moment due to a broken glow plug holder terminal so that would have definitely been making it a rough start.
Thanks for your help

Bronson