I was at Nubodi on Friday trial fitting my wires for clearance - they looked great on your car Andy!
Anyway I saw the centre console and door panels on the car and I have to say the pictures here really do not do them justice at all. They look great and fantastic disguise.
In fact - you may have to make some more *ahem*
Re: the trigger - could you look to veedub scene they have plenty of triggered gearshift handles (for the reverese lock out)?
Of the 427 Cobra lock out style:
No idea if you could adapt them - more likely use a similar approach?