My initial thought was "wow". 

I opened the pictures and started looking through them. That A/C setup is weird. It has an underdash aftermarket A/C unit with a 65 Pontiac (with A/C) dash pad installed with the centre vent in it. But it doesn't have the 65 or 66 Pontiac A/C side vents. Certainly a homemade setup. 

Great looking car though with the factory tach and 8 lug wheels. I'm not seeing the vacuum gauge it is listed as having.