74 Dart Sport Heat / AC Dilemma

Well my Dart has waited long enough, finally got her back out of storage and finishing it up. Now got to get off the dime and do something about getting heat/AC into the Dart.

My Dart was originally heat only. A long time ago a guy was getting rid of a 72 Duster heat/AC underdash box, evap, original under dash vent and other good stuff. Even if I didn't use it. Yeah I know the fan holes firewall are different between AC and NonAC. up to 72 and 73 and later. I really don't want to go to factory with all the vacuum hoses even if I found a 73 up AC donor car to get all the stuff and make the modifications if i couldn't make the 72 stuff fit.

Then was looking at Classic Air but originally they only fit up to 72 A bodies. Now on their web site they say they have a complete kit for non AC 73-74 Dusters and Dart Sports. Even though it does away with the fresh air intakes and the fan motor inside the car can be a little noisy, but its a clean installation. Called them saturday to order but they say its a mistake, it wont fit and they have to remove that information from their web site. Well heck! Isn't really the only difference in the non AC dash controls where the fan switch was vertical in 73 up verses horizontal? The fan motor holes shouldn't be a problem since I have a non AC car and the kit is for a Non AC car.

I really don't like the big old fashion underdash 4 holer vent evap assy or the hot rod universal type AC units. I read a lot of everyone's AC threads, just can make up my mind which way to go.

Gotta make a decision and do something for the Dart, this Texas heat requires AC.