Son of a Hot

Ok well I went to the Southern Nationals today. We took my car we were parked close to the track and the track temp was 149*F :glasses7:
Well we go in the car to go home it sucked.
So
I have a 1973 Plymouth Duster 225/6 ac car.
Only the heat work (not very hot) the car came with ac when I bought it but the ac system was missing the compressor and the lines were broke and the condenser was sreaded. So we pulled the lines and condenser off. I still have the A/C controls. I was wanting an aftermarket system but for a v8 engine. (So when I swap the motor). Where can I get an aftermarket ac system that not 1000 dollars, I like the vintage air one but it’s like 1300 dollars.
First is the a complete system with A/C and Heat
Second is there a complete A/c system
I was going to put rebuild/redo the heater box replace all the stuff in it.
Also put a new control unit in it
Also put new hoses running to the vents.