A/C is on the way 
I am going to install some coiled copper tubing with holes in the inner compartment with a collection box in the front. Install a clam shell vent so the air will enter the box....travel through the ice cooled tubing and she will have A/C
and I will have a built in cooler 
I definitely want to see pics of that

Another thing I installed in our trailer and bike is one of those battery operated indoor/outdoor wireless thermometers from Home Depot. Nice to know the inside temps during hauls through traffic etc. on warmer days. Someone even makes a wireless camera and screen for motorcycles to keep an eye on things but I had to draw the line somewhere.

Our Aussie Ruthie, has been over 20K in her trailer and the biggist problem we've had is getting away from curious people and crowds when we stop.
Not being as crafty as you, our A/C consists of a prefabed cooler of ice with a lid with an electrical fan on one side and an hole on the other. The "A/C" worked well in traffic and at stops but while traveling with the windows and vents open did very little. I'm looking forward to seeing more of your fabrications and hearing how everything works for you.