A single pneumatic shifter should be pretty easy to figure out. I'll look into pirate, thanks man.
Edit: Yup, I'm doing it. Twin stick cable shifters for the 205, pneumatic shifter for the doubler.
Air-shifted twin-sticked NP205 - Page 9 - Pirate4x4.Com : 4x4 and Off-Road Forum
Looking forward to seeing how you do this.