S'funny, my Hobbicos have ally frames...As for steering setups I use a plastic flex pushrod (Golden rod) straight from the innermost hole on the rudder servo to the slotted 'flag' on the nose retract. With the leg extended this must face rearward. Use a plain metal (Dubro) clevis so it can slide up and down the slot in the flag. The flag can also slide up and down on its operating rod (if you have one in your hand you will see what I mean). So long as you deliver the pushrod reasonably close to the mid point of all this movement then you will have no problem with the retract set up. I don't have a camera that will take adequate photos of the models, but when I can I will post some here.
Evan, WB #12