I am working to get my 1973 club cab truck back on the road with a 4bt cummins diesel and 47RH over drive trans.

It is a factory A/C model, but the system is incomplete and has been open for decades.

I have a 2000 parts truck and was wondering if anyone has done any swapping of a complete newer system under dash blower box, etc into an older truck. I know it will take some fitting, but in the end might come out better/cheaper than repairing the old stuff.

Anyone have experience with such a swap even on a different model or car? Mostly curious about switches and the electrical part of it. With enough cutting I know I can make it fit.