Air Conditioning

I'm starting with a 1970 Dart Swinger with no AC running an LA 360 motor.

It's about to be summer here in South Louisiana which means either the Dart will be rarely driven or I need to get to installing some blow cool.

I like the classic auto air system since it seems to be complete and will mount up to the 360 no problem. This is where my question comes in.
I will be swapping a Gen III Hemi next spring. I'm waiting on having my shop to take it apart. Will I be able to use the factory compressor on the 5.7 and have a few lines made up to connect it to the Classic Air System? From what I can tell the only part I'd be out is the Classic Air Sanden compressor. My biggest concern is that I'm overlooking something and will drop the coin for the classic air setup only to have it not work at all with the new hemi.

What do you guys think?