Dave Brown also makes "push rod ends" that are basically "adapters" between some normal music wire and the fiberglass pushrod. So you attach to the servo and control surface in any of the normal ways.

Dubro and a few others make fueling hookup gadets, though they get mixed reveiws due to air leaks that some people have had. A more trouble-free approach is a "fuel dot", using a 3rd line in the tank that is used for fueling and unfueling. The fuel dot caps the line to prevent leaks, and has a nice looking flush mount on the outside of the airplane. The low-tech approach is to just run the fuel tubing outside the cowl, splice in a bit of brass tubing or a fuel filter, then run it back in the cowl to the engine. To fuel, just disconnect the exposted bits, it's the same as if you were taking it off the carb.