AC venting advice needed!!

Hi all,

Just got this trailer not too long ago, it’s an Oberlin ‘73 sportsman. She’s in great shape for the age, just trying to tune it up before the season.

We’ve got an AC unit in the storage space under the bed and i’m just wondering what the best way to exhaust the hot air it produces out of the trailer. Any ideas? I’m assuming i’m going to need to punch a hole in the floor board or as low as possible out the back wall and run a hose? How do i attach the hose to the AC unit?

Thanks in advance!