Manual Transmission in a 2016?

[Bubba4spd]

Actually I already have a 16 double cab LT in transit to my dealership that I ordered some weeks ago for my work travel truck. But I was wondering how crazy/ difficult would it be to have a 5 or 6 speed installed into a swb 16 model. I kept my 99 LS extended cab Silverado because I ordered and have enjoyed the manual 5 speed in it so much. I realize the warranty would probably be shot making it crazy to do such a thing. But I really do like the rugged looks of the 16's and the short wheel base model with a stick would make a cool little running around town ride.