If you have room up front,you could put two ele.servos up front with two pushrods.I really don't like adding weight to a plane,if it were me I would put two Hitec HS 225mg mini servos in the tail,with a pull pull set up on the rudder up front.It really depends on how the model balances,with a glow engine up front you should be able to move all your radio eqipment up front to offset the balance.The two 225's are about equal to one standard servo.JMO
Mike