I saw that car for sale a while ago.
https://www.hillbankusa.com/vehicles/449/1957-caterham-seven-sv-360
One thing that I don't really understand about the AC install, is that the blower motor seems to take air from the engine bay? Doesn't make a lot of sense, after some time running you'll be cooling extremely hot air from under the hood instead of taking it from the cockpit (or the outisde).
It appears to be a vintageair mini unit, I've installed one of those several years ago. It was a very reliable and well made unit with top notch components.
