I've not heard of North Sea operators actively converting people
'in house' from FAA to CAA. From guys Ive spoken to, the CAA look at everyone individually for your hours and experience and decide what training or testing you must do to convert. Obviously the more hours the better.
We had some guys from Canada come over with canadian licences and I think they were checked out in-house.
Send in the CV and see what happens.
Do you fancy Aberdeen??!