Got em. that didn't take as long as I thought it would.
This is a mock up sitting on the workbench. The brass tube would normally be set into the decking, then you have the upper and lower arms.
Here's an entire push rod style throw. The nice part is they come with the clevis. That's the thing that connects the rod to the wire. The wooden knob took a few drilling operations, and is connected to the rod with an Allen head 2-56 screw.
Here's a push rod ready for install.
Here you see the upper arms on a 3 way switch.
This is what a push rod looks like from below. The lower arm is very short.
To do a Tortoise installation, the lower arm is longer, and just bent in a hook shape.