Putting A/C in a formerly-A/C car

I have an absolute complete setup in a 75 duster v8 car. One stop shopping here.

Shipping is an absolute pain in the *** but it depends what you want to budget for a factory setup and how close you are to Colorado 81005

Because it's so complete and original I was not really motivated to get rid of it but if it's something you gotta have, I can certainly part with it and run the car without a/c. It's still sealed, not open sitting open anywhere, even the condenser is in good shape and sealed.

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Thanks, but I'm not sure how practical that would be, and just shipping it would probably cost as much as an aftermarket system.

Classic Auto Air's "Original Air" division has "underhood upgrade" kits- everything from the firewall forward. If all your interior components are intact (heater/air box & evapaorator, vents, controls) then this will get you all you need; with all new, modern components.
The bad part: only currently available for B bodies. But give them a call- they offer A body parts too, and may be able to piece together a kit for you. I wonder how much is actually different under the hood between A and B bodies anyway... a couple of hard lines with different bends?
Use the "Contact Us" icon on the left side of their page and find out:
MOPAR - STAGE 2 & 3 | Original Air Group
73-74 Charger/Satellite A/C Performance Upgrade Kit Small Block STAGE-2 | Original Air Group

THAT helps! That looks like EXACTLY what I might need! Worst case, I can get hoses and hard lines made locally, if I need to...just need dimensions, which shouldn't be that big a deal.