Ok so just apply and see how it goes basically?
Don't waste your time the answer is that it has expired and you now have to do a renewal test as stated.
What does it take for a Dutch examiner to be authorised by the CAA to do a UK test?
This is not a problem, getting permission to sign the rating is more difficult. Two documents with the answers:
IN2015-050
EASA Examiner Differences Doc
As you are living in Holland and have trouble finding a UK FI or Examiner it would surely make sense to change your State of Licence Issue to the Netherlands.