Ramshackle Games have added the Iron Grumbler vehicle kit to their online store.
From their announcement:
I’ve added a new resin vehicle model to the webstore, the Iron Grumbler. This is quite a large piece of kit, a heavily armoured scrap tank. The model was mastered by Leo Blackband and costs £8. The individual pieces can also be bought separately from the “tridlins” section of the webstore.