I don't know of any drawings, but there are several photos in existence, one or two with a photoshopped turret on top of the cab. We had a discussion here about the purpose of the two pairs of prongs fixed to the front horns.
In his book, Jack Alexander says that the tank was not armoured but made of boilerplate, and the tracks were of ordinary cast steel. It was a prototype project rather than a combat vehicle.
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