I have 3 brand new Advance Adapters Universal Twin Stick Cable Shifter kits. It is PN303009A on their website. They are missing some of the Atlas specific parts. If you look at the link for the PDF you can see the part numbers. The kits are missing parts 1,6,7,13,14, and 15. The reason for this is also part of the reason I am selling them. My employer uses Atlas 2's as part of a transmission test rig, however we install "lockouts" to lock them in 1:1 so we have no need for the shifters.
You are getting the twin stick shifter and cables. You need to figure out how you want to attach the cables to your t-case.
These are perfect for someone who want to set up a twin stick on something besides an Atlas (or an Atlas, if you call them and get the missing parts).
The lowest price I have seen is about $315 for the complete kit, so lets say $200 each.