A couple of extra parts for the Rover turned up today. In this case, replacement clutch and engine brake cables.
Clutch Engine Brake cable, Rover part 746-05020 -
https://bwmachinery.com.au/product/r...les-746-05020/
Clutch Cable, Rover part 746-05039 -
https://bwmachinery.com.au/product/r...les-746-05039/
Both are operation on my unit, but I guessed it would worth getting these while I still can. The Krohler powered versions also have a throttle cable, the "Rover" 910 engine had a fixed throttle position. Throttle cables are universal so I don't see the need to hoard one for a rainy day like the more specific brake and clutch cables.