That's believable especially if it's the car I think it is....
Many of these cars were imported by the individual I mentioned from the Gulf States to the USA.
Most were not able to be easily registered in the USA so they moved to Canada and a few including an exquisite Gemballa wide body, which is owned by a well known forum member, were brought to the UK.
All very low mileage with sale prices a few years ago around 40K sterling.
Here is a pic of the Gemballa and another very low mileage C126WB imported as I indicated: (note the street background is similar to the car that is currently listed in Canada )