Recommend an AC system for my 68 Barracuda

I have a 1968 Barracuda that is a non-AC car - never had AC.
I went to the VintageAir website, went through the "Select make, year, model" routine, and they don't have a system for my vehicle. ......

What system would ya'll recommend? Link?
I'm in Southern California and I want a seriously insane amount of cooling....like for a school bus!!!!
Not kidding. .....I'm ALWAYS hot......I like serious AC.

Any ideas?!! Thanks in advance!




Jeff