It's in the Optional Parts catalogue but the picture is not very helpful. I will see what the weather's like tomorrow and see if I can take photos. The hand control is on the passenger side below the dash and goes through the firewall. The lever and rod are on the firewall under my air filter.
The ones pictured are shown above a 4 or 6 cyl gearbox. The parts list seems to suggest the use of a short cable and sundry fittings, not connecting rods.
Yeah the accelerator end is a bit complicated because there are two controls that come together there. Friction seems to play a part too. I set the hand control and that does a little to the engine revs, but then I push the accelerator pedal and it 'sticks' where I push it too.
Don't know if that's how it's supposed to work, but it does so I ain't messing with it