Hi. I am new to sausage making, and I have a chance to use an older metal Kitchenaid grinder. I have used it to grind my first batch of meat, but I still have some questions. Here is a photo: I would like to use it to stuff casings (so far, I am just making bulk), but there are no stuffing tubes with it. Will the plastic tubes that come with the plastic model work with this, or will I need some other type of tube? It also didn't come with the plunger....are they available? It seemed to work really well; didn't bog down at all.