Steermaster Mark II Reassembly

[1960 Starflite]

I'm rebuilding my 24' Harris FloteBoat. While having the helm off I decided to remove the Steermaster Mark II steering to lube it. Well mission accomplished but getting the gear/cable case back together has become a problem.

Can anyone point me to a video or instructions on Reassembly? I seem to need a third hand holding cable and nylon guide in place. Someone put this together so I should be able.