Just a random thought. For the three series, is it reccommended to replace the thermostat switch, radiator and water pump at 60,000 miles? I know for my E39, that as a preventive measure, at 60,000 replacing those items is recommended. This is not what BMW NA says, just past experiences of other owners.
Sorry to hear about your car Harry. I hope your gf has a car that you guys can take on your trip.
On the bright side, you helped out someone that needed it. Good karma.