Rich - I will be thinking about you from Sunday on. I'll give a prayer that you arrive safely everywhere you go. It would be great to hear from ya during the time your running back and forth from Texas. But you don't have to pull over to the side of the road and post every 5 minutes. We'll let you post every 10 minutes!
Holy cow, 16 mpg! That is some serious work that 3-Tapper did. My 145 run through north GA is breeze compared to that. The wind is generally never much of an issue, at most it is usually a light breeze. And on I-75 there are some gentle hills. But with my cute little utility trailer with the tailgate folded down into low drag mode, I doubt the speed will drop more than a couple mph.
Are you having to pull your trailer with a load ramp sticking up like a barn door? If so, maybe you could lay it down like shown in my picture(s). Lay it down then throw a strap strategically over your stuff.