Extended throttle cables

Hi All,
Does anybody know where I can get extended throttle cables for my '13 plate VZ800?
I am planning changing by bars to a wider style, similar to a VN900/Triumph America. I am dropping the risers back to the yoke, they will 2" high so, will give me some leeway, I also read on here that quite a few inches can be gained on the clutch cable by re-routing but, I still think I might need longer throttle cables, and have to extend the electrics, and the the brake cable.

Thanks

Graham

Graham have a look (- HERE -) in my ape hanger thread, you should find all you need to.