Hi billyj,
Welcome here and to the Deutscher world. Good machines, probably the most rugged machines ever built.The go to man on these is Terry Scanlon in NSW. He was keeping a register of all the machines, who has them and where they are located and their build dates etc, plus he has mountains of parts. I haven't spoken to him for some time, hope he is still ok and keeping these machines running. The model number is on the brass plate on the steering tiller, from that he can tell you where it slots in as these were built for a long period of time without change. You can see if you can contact Terry at
tscanlon@webone.com.au