The AC vents in the dash for the centre are on TOP of the dash and pop up when in use, and AC equipped cars have a unique dash frame and dash pad therefore. The two spot coolers on either side are below the dash.
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The HVAC control buttons are completely different, as likely will be the bezel etc.
As noted above, you're best to find a AC equipped parts car with all the required dash parts and start with that. There's a good possibility that the firewall will require different holes cut for the HVAC box as the blower motor and connection lines most likely will not be in the same places as a non-AC car.
Not a project for the faint of heart. This really requires removing the entire dash and HVAC assembly, and starting over.
However, if you're looking for a period look, many cars were given AC retrofits back in the day with underdash hanging AC systems that were added after the fact, leaving the original non-AC system in place and functional. Mark IV was a popular under dash AC add on that is still being manufactured today, available from many vendors, and can be used with modern brand new compressors and condensors etc.
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If you really want to stay Mopar, well, Mopar had an enormous one made by their AirTemp division which was very effective and looked like this:
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They're out there - I just gave the one in the pictures away to FCBO member
@cbarge !!
Good luck!