With 400 hours , the job market will be very limited to you..
The route would be
14 theory exams -
capt.gs
Up to 30 hours of flying to meet "The Standard" of flying
An English language test
A flight test.
CPL training -
Homepage | Helicopter Services | Helicopter training, helicopter charter and aerial work including photography and lifting
http://eastmidlandshelicopters.com/training.php
https://www.arcus-heli.com
You do not the meet the requirements for a ATPL
Flying required for the IR
IR training
http://www.starspeed.co.uk/training
Babcock Helicopters
http://helicopterservices.co.uk