welcome from Maine US. I thought Cessnock sounded familliar, so I looked it up on Google. It is a beautiful area. I visited it on a wine tour and the Hunter Valley is a wonderful district.
Welcome to the group. I, too, bought a "retirement" SM and it has been a workhorse. List all the features you want and another list for needs and then go on line and ask advise here. And don't forget a tradeed in machine. New models come out so often that a large dealer usually has some. And Sydney is so close that there might be some there
Let us see what you are doing.
Mim