I'm considering having an 2002 E39 engine overhauled/rebuilt. Are there any forum members in the Phoenix, AZ area that know of any capable shops that can do the job? Car runs now, but she's starting to get that tapping sound at cold idle start up (possibly the timing chain on the verge), leaking oil, etc....just getting old (200k) and all the associated engine issues that go along with age. Car still looks/drives nice, so I would like to extend it's life on the road. Thanks.