A well trodden path to an Easa IR (for those with an FAA PPL for example ) would be to do an FAA IR then convert it with a 15 hour course.
I myself was considering this route. One of the complications is the need to learn FARs and pass the written and oral exams and flight test. But then it hit me: I don't need to pass the tests. I don't even need to take them. As long as I log the 40 hours I can still convert in 15 hours via CBIR. Almost sounds too good to be true?