We make the A/C units for the Cobra in my plant. In fact, we make the entire frond end cooling module (basically everything except the compressor, which gets bolted onto the engine at the B&A plant). This system would need higher capacity system than normal to work, but it could easily be taken from another model. The Cobra already has a pretty good sized condenser, so it should be fine. The compressor would probably need to be beefed up (Expedition??).

It is pretty impressive the improvements that will be coming in this particular sector over the next couple of years. Using CO2 instead of R134 is just one of those technologies...