I think I'm going to go with this setup, sure it's expensive, but what's a little more. I'm adding a Gear Vendor unit to my BB C6 at some point before the car is done. This kit allows your C6/GV unit to automatically at as a 6 Speed as you paddle shift, it knows how to control the trans and the overdrive. They even have a hand shifter.
Paddle Shifters, Sequential and Electronic - ASaP
Paddle Shifters, Sequential and Electronic - ASaP