Once she registers as a resident of the UK again, you become entitled to live and work there. Check out
www.firstvisa.co.uk they have all the info. Ask for Michael Aspell.
Licence conversion requires that you hold a valid ICAO ATPL, have at least 1500 hours as Pilot in Command of an aircraft weighing more than 30 tons (or 1500 hours as Pilot in command, or 3000 hours as Second in Command, a JAR25 Aircraft if the Brits have updated the requirements in accordance with JAR-FCL 1.005 as ammended). Check out
www.jaa.nl and find your way to the above rule. Also contact the UK CAA at
www.caa.co.uk & Good Luck!