1.Possible ,head down to Darley road,$un lanka got some
2.This is a bit tricky question,cz diesel vehicles doesnt have a throttle pedal,but accordeing to HKS
but if u wanna know the price an Apexi one will come around 250$(I'm not sure the latest price)
3.Depends on how u use it,Price is around 10000
specially addind a timer a great investment on your turbo,because you are not the only one who use the vehicle so they might not know that the vehicle have to leave for a sometime before switch off