these were often used untill about the mid 70s in africa as extra brim welded onto the original wheel, you can look at archive photo of even unimogs using these just with a much thicker rope,i think leyland africa had a big part to play but cant confirm this.
there was also a device that was used on the prop shafts that when secured to a tree/anchor was used with the spinning/rotating of the wheels then using the kynetic energy of the rope would be enough to pull you out,
but as a lot of guys did nt secure the plates properly they would often end up with a broken prop and a lot of damage to the vechile, hence you dont come across them this side of the equator.
in terms of the drum wheels im sure you can pick some up from old military dealers at a fraction of the cost for the aussie equalivent.