If you are not going to do any 3d rates on elevator ...I think it will work....1/2 " movement in each direction on elevator is enough movement to do any "none-3d" maneuver including snap-roll!
As you can see.... 1/2" deflection on your elevators is not going to offer much resistance

the (1)225 mg is really pushing the envelope to the limits however.
NO WAY.....on the rudder though...try a minimum of 70 oz torque and no mini