I can measure mine when I go to my hangar next time, but there are a few factors to keep in mind. Your a long way from setting the final position, which has variables created by the torque tube adjustment, center console/panel height variations and rear stick/front seat back clearance. On my -4, I installed a vertical center panel from the tunnel up to the bottom of the panel , but displaced forward a few inches. The stick must travel well forward of the panel bottom, and clearance for your hand must be considered. If you are not installing a center panel, you have no worries about forward restrictions. Also, the "neutral" position of the stick can be set FWD/AFT by adjusting the torque tubes. I would recommend keeping the sticks as long as possible until you sit in the seat and find the length best suited for you. I used a tubing cutter to do my final cut after the seats were done and I was installing the grips. Full left/right travel will likely be against your leg and can't be adjusted unless the geometry is changed. I know this sounds like a lot of bla bla bla, but you will soon understand it all. I have lots of pictures from the build and final product if you need.
41 Aeronca 65TC Defender
8A7 / Advance NC