Here it is. I have to do the actual precise math on the economy, but cruise set at 65 mph and 2 mountain passes on a rainy day looks like a bit over 21 mpg. We were making good time going over to pick it up running 80 mph and were getting about 26-27 mpg. Normally it will get about 30 mpg at 65 mph without a trailer. This is all on diesel #2 which doesn't do as good as summer diesel. I also ordered 2 highway tread radial tires to replace the bias ply mud tires on the trailer now (same size though). I hope to pick up .25 mpg with those, and they were $330 for the pair mounted on new aluminum wheels. That will never pay out, but at least I'll have 2 sets, one to make for smoother highway trips, and another to put on when going on the rocky trails where a puncture is more likely. I also shouldn't have to replace any tires again for a long time too and I can carry 2 spares.
Here is a picture of the 180 awning I put on it, and the extra large rear hatch tent too.