Attwood supplies many OEM steering cables/racks/scrolls. Check their site for measuring instructions, even if you purchase elsewhere. Per
@QBhoy the steering cable takes a long route. Throttle and shift cables are more OEM specific, but available aftermarket. Also longer that you'd think.
If you're planning to replace, why not start now and remove the cables and measure their length? You have to do this eventually. Getting the right parts is a big time saver.