Model village, possible Bekonscot in Oct 1964

A small boy and his mother (presumably) watching a boat being unloaded at a model village somewhere. In the background is a large model castle which I hoped would make the location easier to find, but an internet search didn't reveal which model village this is with any absolute certainty.

Mike (in the comments below) suggests this could be Bekonscott near Slough, and although this image doesn't look exactly like it, considering it was taken in 1964 and there have almost certainly been changes, I think that's a good guess and most likely.