I have never been particularly concerned with things walking off, in part because all the connections and controls are unique. The control wires run inside the hose into the tear. The placement of the goes into and goes out of ports work, there are louvered grills on the inside and the goes into cold side is on top and directed upward. I run the vent fan with the vent closed which keeps the cool air circulating.
Mid summer we get 90 degrees and 90% humidity and the puddle of condensate is fairly large. Sizing how many BUT was based on a calculator I found on line that let me plug in six exterior surfaces and 400CF interior space and 5,000 btu was about right, It spends enough time running to dehumidify nicely.
We encountered some one who had a 4X8 tear with a 5.000 btu and their complaint is that it short cycled and they had cold wet air.
The picture is at Sully Creek State Park just south of Teddy Roosevelt National Park this summer the last picture is of an air purification system I am working on with a HEPA filter, I suffer from asthma and it is triggered by wood smoke and badly built camp fires. so far it is in the proof of concept ugly but it works stage. it can be stand alone or used in tandem with the AC.