Best option for ac?

[ChaseRoads]

When shopping for a classic, specifically a 67-68, what is the best option for ac. Is it better to find one that had factory air or something aftermarket?

 

[Mr.Kelley]

Vintage Air kit. Everything you need except freon, and everything new.

 

[Realmongo]

I'm planning to go with the Vintage Air myself, plus I won't have to worry about R-12.

 

[WingsOfGold]

Vintage Air is great in my 69