There a couple ways to skin that cat

The main solution is that there has to be a torque tube going up through the fuselage that is in line with the rudder hinge line. In other words run a brass or aluminum or hard nylon tube down through the fuselage that goes to one side or the other of your elevator control rod and out the bottom of the fuselage. It has to be on the center line of your rudder hinge. It will have to terminate on the bottom into a piece of plywood. It can be 1/8" in scrap lite ply or some thickness maple ply.

There will be a piece of 1/16" music wire that goes up through this tube and up between the rudder and fin. It turns into the center of the rudder at a right angle about a 1/2" from the bottom and is epoxied into place. The bottom of this torque rod will be bent at a 90 degree angle to the centerline of the fuselage. (It will stick out to one side.) Use a connector such as these http://www3.towerhobbies.com/cgi-bin...?&I=LXD899&P=7 to connect a pushrod to your tail wheel wire which is bent the same way

Here's my LT40 but my rudder was more straight up and down and I ran the torque rod and the tail wheel wire as one