Well, you are correct in that this is the Canadian version, I had forgotten the standard British fitting of the two tow hooks.
This one is the 1543X2 variant which had the standard civilian cab. The CC60LX2 had not only the larger wheels but a militarized cab and different front bumper.
If I may quote from Bart Vanderveen "The Canadian Maple Leafs were basically US-type Chevrolets with certain "heavy duty" features. Also, RHD of course.
So I was off regarding the country of origin by the width of a river
Thanks as always for keeping me on my toes.