yes go the electric route and convert it over. look in tower hobbies, horizon and so on maybe even hobby king.

here is two that could work with this engine.

This one is a bit large but would fly it on a 7x3 APC:
http://www.horizonhobby.com/Products...625#quickSpecs

This one would be just a bit overpowered but would take off grass easily. Do this one with the recommended servos, small reciever, 200 Mah LiFe from tower hobbies, 1-2 ounce tank. would end up around 14 ounces lol verticle on a cub???

http://www.horizonhobby.com/Products...ProdID=EFL5025