Perhaps ask Allan Howatt of Steve's Taxis and Car Sales Alconbury UK
https://www.youtube.com/c/alan4x6677 Try messaging him at
https://www.facebook.com/alan.howatt/about He'll certainly an expert with these engines and will know if the advice you got is correct and the alternatives. He's apparently pretty responsive to such request but I locate his email address. Perhaps try him at StevesCarSales@stevescarsalesalconbury per
https://www.facebook.com/stevescarsalesalconbury . Otherwise wait for one of his YouTube Question and Answers love streams.