Bryan, that's a fantastic install, and you documented it well. What a great way for others to see how you did it.
There is two things I did notice, one you have further alluded to about the outside door being a bit awkward. I thought about making a hanging table too, but the heat blowing out of the AC is just too much to make its use confortable.
I've regreted installing my outside access door so that it hinges up, instead of down, it would of made things so much easier.
The second is the vent in the floor. I was wondering if when towing, rainwater from the road could get blown up and into the trailer? I wonder if you can fashion a cover of some sort to keep the vent from becoming a water-scoop if & when you pass through a puddle on the road. It's probably not a concern, but it's just a thought.
Otherwise, thats a great mod...much better done & documented than mine.