Re: 1958 Johnson 7.5 hp conversion
The throttle side is easiest, as you'll just need the clip that bolts to the carry handle forward of the throttle arm to attach a cable. Shift side takes a little more doing, as you need to either find or fabricate a bracket to mount to the cowling to support the shift cable clip. For controls, the recommended ones would be a vintage set of Johnson Shipmaster controls. The original "football" shaped ones are nice, but the rectangular ones from the 1960s are more common. Both do the job. Google "Johnson Shipmaster" and you should get an idea of what to look for. They turn up on eBay frequently, as do the clips. Make sure you get the cable ends, as the cables will NOT come with them. You would purchase new cables to fit your application's needed length.