Like the Sgt’s Mess “kit”, these two examples are intended for the tabletop wargaming crowd. There wasn’t much to these hard resin guys:
Look at the sides to the crew compartment on the Beaverette Mk I/II – they are molded so thick that were it armor, it would stop an 88mm shell fired at point blank range. There was no way I was going to thin that out. The Mk III at least wasn’t oversize like the Sgt’s Mess example.