Dunno, and I'm not tooo keen on doing it either, mainly 'cos metalwork is NOT my greatest skill and I'd obsess over getting everything 110% perfect... And I have no intention of devaluing the car any more than what LR's Marketing Dept did... - But that's a personal opinion of mine.
Speaking of this, I recently saw a Classic with what looked like cut-down 'Spitfire' exhausts in the same position. Did'nt look overly silly.... and another pattern seen ages ago was like shark gills, 3 or 4 slits and bulges... a better look IMHO.- Pity they were chromed which tended to make them tooo obvious... Once again my personal taste which favours "Understatement" over "In Your Face."
I'd humbly suggest you spend your Dubloons or Pieces of Eight (whatever currency you lot use over there....) on the cooling system as Philip suggested, then see if you have any left over....
Yes, I will take / post a pic when I visit him next. :p

