There are some individual NOS A and B cables for your bike on eBay, but there are different lengths also. I would contact them and see if you can find both the same length.
I see you are an IHC Scout man... I am an IHC fella from way back. Bought my dad's 68 IHC Travelall 1100C series Apache Gold color in 1975, and traded it in on a 1978 IHC Scout Terra Rally pickup Terra Cotta red with white Rallye stripes, 11x15 GroundHawgs, close ratio 4 speed, and white Suntanner convertible top for it. It drove like a Corvette...and ATE Jeeps for lunch, 345CI Dual exhaust. Owned numerous Scout II's also, and one other Terra for parts. The 78 Terra Rally was a BEAST, as well as the AWD 68 Travelall. Sold my last 78 IHC Scout II to a young man, it had the close ratio 4 speed like my original Terra Rallye did. He was going to restore it, gave him a bunch of parts too.
Charlie