Sooo….. first things first. If you start this project DO NOT use any style of Z bars. it is very difficult to the point of impossible to get the internal wires threaded. I did it but it was not pretty.... If you decide to do this, I recommend 14" apes, with 1 1/4 inch diameter bars all the way (with the exception of the reduction to the ends at 1"). it will be a lot easier to thread the wires.
BTW. cool trick. I tied a tear drop fishing weight to the end of a sturdy string and just bounced it through! worked great.
Here is what I had to use: 6" over stock for the throttle cables, 6" over stock for front brake cable, 15" over stock for Clutch cable (Special order from Barnett Clutches, 82" length).
I stayed with the original big dog controls. I will discuss how I did that later (Kinda wasn't typical!).
Also, call the big dog dealer in Kansas and have them make you two 14" extensions for the two handlebar wire controls before you start this project.