I have a 67 Coronet non-A/C car. It is time to put A/C in as down here in the desert it gets very HOT!. A friend recommended Restomod Air. What is the difference between Restomod Air, Vintage and Classic? Are they all good and do they work well? Price difference? It will need to work in 110 degree temperature so it needs to be good and will last a while.

Thanks ahead for any input.