For my Kaos with split elevators, I used the Dave Brown fibreglass pushrods. These come with several different plastic tips that allow you to attach metal rods to each end of the pushrod. Included in the set is a tip with two holes so that you can make a Y fitting and have one rod on the servo end and two rods on the elevator end. Cut slots on both sides of the fuselage and bend the rods to exit the fuselage through the slots. I flew this plane for several years and never had any problems with this set up.