K4 1000 quick action throttle.

[Baylissboy]

I'm looking at fitting a quick action throttle to my K4 1000, the problem being that the throttle housing incorporates the switch unit. Have any of you guys found anything that works, ie quick action throttle that will fit the standard switch, or what switch to use instead of the standard one so I can fit a separate quick action throttle?

Thanks,

Steve