My scheme for this, which I looked at for the PT and then revisited with the Crossfire was to junk the AC and fit a Rotrex which is almost the same dimensionally as the compressor and can use the multi-V drive. I got in to quite deep discussions with the guys in Denmark but the whole thing was just crazy price wise. I had all the mountings and piping (for the PT) CADed up, ECU/ignition planned out, but the killer was the 1,200GBP they wanted for the supercharger - great bits of kit though. I looked into it again about a year ago for the Crossfire but needed the an SC a couple of sizes and that was nearly 2,000GBP! It's always the way when the volumes are low.

Anyway, Good Luck with the project.