Cheers guys. Glow plug light came on and car went into limp mode when under load, but only for the first 5 mins of driving. Fuel pump changed and limp mode problem solved.

The starting issue has got worse since we have had it. Maybe as weather getting colder or just it getting worse.
Once the car is warm it starts perfect, just like it should.

Today I've just driven 100 miles (about 80 on motorway) and it drove perfect. No juddering, vibrations etc... Even town driving through the gears, all smooth, no noise etc.

The car pulls really well and zero smoke when put foot down. Used less than 1/4 tank and done 140ish miles since garage.

It's now stood till morning so I shall post up how it starts. Usually I put keys in, turn till lights come on then adjust mirrors, seatbelt on, seat position etc, and then crank over. Seems lots of power in battery (can have music on while hoovering/washing etc) and no battery drain. Plus 100 odd miles today should provide a good charge.

But typically I turn it over and the car wants to go but shudders like mad and don't sound good and then fires. Drive off and it runs perfect from the moment the engine is on. Perfect idle also.
Turn ignition off and it's twice as easy to start. Turn it off again and it's almost perfect. Start again and it's fine.

So....

New crank sensor
New fuel pump
New fuel filter
4 new injectors
EGR cleaned and checked
Turbo vanes cleaned and checked
All lines blown through (paid for it to be terracleaned)
New belt

Cheers for all your help in this matter.

I have read a few posts about fuses and relays being missing.... But surely that couldn't be the case.

Cheers again.