1) Triton or Triton II are good as well as the Ice. you will need a power supply though. With the Triton you can charge NiMH, NiCd, LiPo and PB's
2) Which Ofna box? There's like 10 different one's. If you are referring to the Chrome Top 10250, then yes it will work
3) Depends if the motor you have has a pull start on it or some other starting system. Usually in that case it has motor mounts that have the motor sitting higher off the chassis to allow clearance for the backplate/starting system. Sometimes a manufacturer will sell a larger diameter flywheel to allow you to use a bump box and keep the pull start and taller mounts. If a larger wheel is not available you will need to remove the starting system and get shorter mounts. What you need is for the flywheel to be sitting just about flush with the bottom of the chassis through the cut out in the chassis.
