I think think that would be fair money for it. The service book didn't have any stamps in it and 3 previous owners. They're going to get back to me on the service history once investigating further and if they could put a BMW warranty on it rather then a Vardy one.
Chassis number is WBALM120X0J057723 if you want to check the spec online. Just seems to have Pro Nav, no other decent options that I could see.