The size of the thing
My version stands 8' 7" (2575mm) high and is 37" (925mm) square. It is a big box, but still not quite as big as the original.
The original K2 Telephone Box was made out of cast iron, was 3ft 6in (1050mm) wide and deep, stood 9ft 4in (2800mm) in height and weighed around 2756 lb (1250kgs).
So all in all my version looses about 11" (275mm) in height and about 5" (125mm) in girth.
I must point out that the K2 model was the tallest model made. The K6, a far more common red booth, stands 8ft 4in (2500mm) high. That's a good foot (300mm) shorter that the K2.
The photo shows the difference in height between the K6 and K2 telephone kiosks. The photo was taken at Smithfield Market in London. That is Jacqui, one of my daughters, holding her dog Polly, in the K2 phone box.