Trailer Ventilation System

Hello I am a 17 year old living in New Jersey. My parents bought me an old camping trailer from 1985 about 4-5 months ago so I can have a space for myself to chill with friends and do whatever I want. We live in a rural area with farms and horses surrounding our house, its quite a lovely area. I have always wanted to make my home into a complex DIY project involving many little inventions and etc. I am a computer science major in college right now so I have a love for cool gadgets and high tech tom foolery. Everything has been going pretty well temperature wise as space heaters were relatively cheap and the trailer maintained heat well enough for it to stay warm. Now that summer is coming up the trailer has become the equivalent of a car in a parking lot with the sun beating down on it. I figured the best place to start with a DIY project would be here. I have a portable air conditioner unit that outputs hot air from one end and cold air from the other. Because my trailer is basically a tube I can really only cool one room, making the other half of the trailer a sauna. I have some rough ideas on how to disperse the cold air evenly and would like some input on them as well as where to find components and which components are best for my needs. Here is a drawing I whipped up on paint to explain my ideas:



Pictures:



This is the face of the air conditioner. Cold air is output through those vents. I figured I would remove the vents and fit a connector piece to the face of it.


I cannot post any more pictures in this thread I guess but I feel like you get the gist of it. If you need any further pictures of what I am working with I would be happy to post them. Any help is much appreciated!

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Trailer Ventilation System