I went with the Blue Wonder motor: http://www.headsuprc.com/servlet/the...lectric/Detail
It will pull the Mini SC straight up forever with an 8 x 4 prop, but it will also fly for about 16 minutes at half throttle or less with a 460 mAh 3 cell lipo.
I used HS-55 servos. I put tires from the Original Super Cub on mine so the prop didn't hit the ground when landing. What a fun plane.