I assume as it was built for export Land Rover wouldn’t be forthcoming with a certificate of conformity for it.
However can you just take it for an IVA test (like you would a kit car) and register it?!
http://www.dft.gov.uk/vca/other/importing-a-vehicle-common-questions.asp
2. Obtaining a European Certificate of Conformity (CoC)
Depending on a number of factors, such as the build specifications and age, the vehicle manufacturer may be able to issue this document. Please note that VCA is not able to issue CoCs.
3. I am unable to obtain a European Certificate of Conformity
Depending on the age and type of vehicle you may be required to have the vehicle physically inspected by VOSA under the Individual Vehicle Approval scheme (IVA) or Motorcycle Single Vehicle Approval scheme (MSVA).