I live in SW Florida and do most of my traveling in the hot and humid south. That combined with age and health pretty much calls for constant a/c. A 6 x 12 is only 72 sq ft, add 6 foot ceiling height and you're cooling 432 cubic feet of space. Subtract from that the volume of the things built in and you're not really talking about cooling very much space. I will insulate ceiling and walls with 1" foam.
I'm a rookie with no builds under my belt yet. I'm close to being ready to start, but I want ALL of my ducks in a row before I get started. With regard to air conditioning here is what I've read and seen on YouTube videos:
Split mini units are expensive, portable units frequently don't cool adequately and require 4" holes to "breathe", thru the wall and window units are not quite the same but I'm not sure why, roof tops are expensive and at 13,500 btu are a bit of overkill for my space.
I'm leaning toward a hundred fifty-ish dollar, 5000 btu Frigidaire window unit. Is that the best choice? And just what are the differences between a thru the wall and window unit.
I'm looking for the definitive answer to cooling a cargo conversion with price and cooling ability being co-equal priorities. What are your opinions?