(Aftermarket?) Air

[Peter]

I am considering buying a GTV Bertone for a daily driver. I live in Texas, so really need air, which limits me to later model years. I am having a hard time finding a suitable candidate. I am also interested in a Giulia, but these never came with A/C. Has anyone gone the path of adding air to a Giulia or GTV later? Any advice/comments/parts availability?