Just got my 777 done with the EK JAR rated examiner, got the 777 and 787 on my shiny new UK JAR licence which is nice. I JUST did it in time, I was lucky.
Hired 777 sim and $500/hr EK rate, then 750 euros(to the examiner) for the rating, plus usual rip-off fees to the UK CAA.
You have my sympathy if you are having the current struggle with the UK CAA.
SyB