Good evening fellow modelers, I finaly bit the bullit and purchased this big kit. I finally came to step 40 which is engine construction. It shows a side shot of an electric motor instilation. I have 4 or 5 of these Airfix motors in stash. The diagram shows how to install one, but it stops there. My Question to you expert modelers is, what other hardware such as a switch, battery box and where would one mount or hide this stuff? Thanks guys for any input. (or gals)