That motor still may work for you, you'd just have to rig something to engage it into gear, might be more trouble than it's worth. Something else to think about, the control king type throttle controls only work on 4 stroke engines, or at least that's how they use to be. If you want the kicker to charge batteries you also want to make sure it has an alternator, most with electric start do, most pull start only motors do not.
My set up is like scobars and it works very well.