Looks good Tristan. I will have to check out my ST to see if it would fit. I see by your video that the leaver you pull down would grip the throttle, if so, this would be suitable for most bikes of other make as well.
May I offer some advice, do what I did not do when I put a camera and a monitor inside my van to see where I was reversing (in 2001). That is trade mark your design ASAP, that way not only would you get all the credit, but any manufacturer would have to pay you to make these.
All the best on your efforts.
Flook[8D]
PS, if you need a guinee pig for testing on an ST let me know[

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