variants of scuttle throttle cross shaft

[JonE]

here is a start, as there is a pic on ebay. I can see it's got a broken throttle bar which much go down to the steering wheel controls, but is it the same width as the later item with no bar, or is just that the lock ring is moved a tad to allow more room for that end? 
The one I have [with room only for the foot throttle] is 49.5cm from end of the bar to the widest point of the outer radius leading down into the right angle bit for the carb.