Either you are looking at using the new cables like a Teleflex rotary cable, which is just 1 big cable in a tube that feeds on one end to a helm and steering wheel and on the other attatches through the tilt tube to the outboard, or you are looking at replacing the existing old style cable and pulley system with some new cables and new pulleys. I think from the pics you do not have a tilt tube, which would complicate using the new teleflex style cable somewhat, so you might ought to do as you were advised and take it to a dealership, let them see about getting some new pulleys and cables. As I understand it the old cable and pulley systems worked just fine, I think they just got in the way a little and they were complicated to assemble compared to what we have now.