Thanks guys for the advice and i have passed on the need when selling to find to find a defender loving buyer living in Canary Wharfe who only wants to drive it around London !

My sister in law lives in London and has a 2014 plate Td5 Puma defender 90 and 2 years ago had it converted to Euro 6. Should she expect to get the 6K she spent on this conversion back when she sells it?