67 Barracuda Factory Air - Worth Fixing Up?

If all you're missing is the underhood components, consider an "Underhood Upgrade" kit offered by Original Air (a division of Classic Auto Air). Includes everything under the hood, designed to hook up to your factory in-cabin system and controls.
MOPAR STAGE 1 | Original Air Group
MOPAR - STAGE 2 & 3 | Original Air Group
I bought that kit for my '69. It does not include everything. Its missing the hard line on pass inner fender, the small hard line between expansion valve and evaporator core both of which must either be fabbed up OR found used. The bracket for filter drier is missing, no hard line between condenser and filter drier, and no condensor. Its is far far far away 'from including everything under the hood'. Its a 'compressor upgrade kit' not a 'I Am Missing Everything Kit'.

And if you have the 3 groove factory crank pulley the '69 and back kit does not use the AC belt groove. Instead, they supply a complete crap bracket setup that directs you to use one super long belt to go around crank, AC, and PS.

So the Original Air kit assumes you have a complete factory AC under hood setup already and if not you are left to go round up all the missing parts yourself. And you can call them up, get put on hold for an hour, just to be told they don't care, they don't know anything about anything, you get what you get, don't bother us any more.

I have all the details of my AC install in my T56 swap rusted floor thread. It does blow ice cold but thats after I jumped through all the hoops to make it fit and work correctly. And luckily I had all the under hood parts NOT included in the kit.