I just buy the wheat in the grocery store..that folks use for storage. I think I have the red wheat. I used a plastic bin..about the size of a 9X9..like a cake pan size. I drilled holes in the bottom for the water to strain out. It's really easy to do. I am thinking that the aluminum pans would work. Easier to put holes in the bottom. You soak the wheat overnight in a bowl. In the morning, I spread a very small amount on the bottom of the pan. You don't want it to dry out..so..have a spray bottle ready. Keep it damp. You will go and run water over it a couple of times a day. Let it drain well.
You do want it put close by to a window, but not right in front of it. So, a lighted room but not right on it. You will see sprouts starting pretty quick. When I said I put a small amount on the bottom, I mean enough to cover the bottom. If you put too much/thick, then you get more roots than green. You will get roots anyway, but my chickens eat that too.. no problem.

You
don't want it to get moldy. So, be careful that the room is not a real warm room. This is going to be damp always. A room in the low 70's works well for me.