here's the link to my first backwards engine bike :http://motorbicycling.com/f38/backwa...son-13458.html
here's my other bike with an ammo can. it has a taillight in it, but you can't tell from the pic:
the first bike on page one has the batteries for the taillight inside the can, also.
i'd love to rig a small fuel pump and seal up an ammo can and use it for a tank. but i haven't figured that one out yet...