Richard, I went to the Radio South web site but could not find a listing for the CF tube and sleeve. Is it necessary to contact Tony directly to place an order? I finished covering the fin last night and am currently working onfabricating an internal control horn for the elevators. So far it involves a piece of 5/32" landing gear wire, a 5/32" nose gear steering arm, and two pieces of Sullivan blue control rod sleeve as bearings. With a little more research I may down size the whole thing to say 1/8". This set up, regardless of size, will be simple, easy to make, and very effective. Photos to follow.