Here are some pics of the pull-pulls on my Siemens Schuckert DIII, first in CAD then the actual model.
All the servos are in the front of the fuselage for weight balance reasons. The elevator servo drives four lines (30 lb Kevlar - McMastersCarr)) through Goldenrod tubes (I didn't use the supplied braided wires for radio reasons). Small brass plates soldered to Dubro rigging connectors make up a "splitter" so each elevator servo arm can drive two cables. There is no Ackerman on this system and it works perfectly.
The fuselage on this model is balsa skinned and non-accessible but the plastic tubes allow the cables to be slid in from the ends very easily. All adjustments are at the servo end so the visible hookups are scale accurate.