I agree, sensored motor isn't necessary for this application. I'm leaning towards the Hobbywing EZrun MAX10 sensorless ESC, w/ EZrun 3652 G2 4000kV motor combo ($101). Originally I was looking at the Castle Sidewinder 4 sensorless ESC, w/ 1406 4600kV motor combo ($130). But it seems like many folks prefer Hobbywing over Castle, even without considering the slight price difference. I don't have experience with either.