We leave our tt at a campground and use it on weekends. We have been doing this 5 years. When we leave we just shutoff the water, roll up the awning and close all windows. We leave the propane on for the fridge and the water heater on so we have hot water when we get there. This is what works for us, might not for others.
I also own an ADCO. I bought the deluxe model and it is better than the other one of theirs that I had, and I got 6 seasons out of it. I live up north and I cover mine in the winter and in the summer when not in use and the graphics and the rest of the outside look like the day we bought it. I used a ladder and got on the roof and just dropped it over the sides then pulled it straight. I don't think it ever took more than 20 minutes from start to finish. After the first time doing it.
Yes it is vacation and for me that means getting to my destination asp. So for me that means starting at 8:00 pm and driving until around 8am and then my wife will drive for a few hours then I will take over when I wake up. I work nights so driving at night is not a problem for me. You have to judge what works best for you.
You will not have any problems. Remember the Eco has 15 more lbs ft of torque than the 6.2. As long as you don't go over your payload rating your good. I have a 6,500 tt and on a 9% grade I was at 2,600 rpm in 6th doing 60 mph. IMO