I can confirm that the 1969 Europa shown above is indeed a 1967 built S1, VIN 460161. My brother bought the car and it has been shipped to Germany in the mean time. It was a pleasure to deal with the Canadian seller who acted like a gentleman. Although all negotiations where done via phone and having not seen the car in person everything went extremely well.
The S1 is in need of a full restoration. A long time previous owner started to restore the car but did not manage to finish it. Nearly all of the hard to find S1 parts are present except for the Zagato tail lights (which alreday have been sourced in Italy). Even a pair of lockable Oddie fasteners turned up in the collection of bits that came with the car.