IYHO: Best bed cap for 2016 TRD Sport 4x4 DCLB

Please educate me and help me make the right bed cap purchase the first time. It looks like my 2016 DC TRD Sport 4x4 LB will be delivered in February. I'm planning on putting a bed cap on it for the purpose of sleeping in it during the summer when it gets too hot to stay in my camping hammock. Already own a little 6K Btu window A/C and a Honda 2000 watt generator that I have been using for other purposes, but plan on using both to cool the inside during our 90+degree, 90%+ humidity nights so I can stay at the lake. I want to be able to fish later into the summer, rather than letting the heat run me back home. I guess I need a side window that slides so I can set the front of the A/C in it for the night, and preferably a sliding screen too if possible. Can you steer me in the right direction? Which cap do you think is best for this purpose? Anyone with experience in doing this have any "If I had to do it over again, I would..." thoughts? Thanks!