Comfrey, Aloe Vera, Walking Onions (Ferntree Gully)

Would anyone have some Comfrey and/or Aloe Vera that I could take a section from, or 'pups'? Need Comfrey/knitbone and Aloe Vera for salve for chronic bruising condition. Also after Walking Onion as my brother was a very keen gardener before his health deteriorated, currently undergoing chemo. But he loves pickled onions and walking onions are very low maintenance and perfect size for pickling. Any assistance would be greatly appreciated.