Is this the mileage you get with the box?? Just curious because I too have an ecoboost F150 and those are my averages too. Thanks!
I was in your position last fall. After seeing how heavy and huge the boxes were, a forklift was my only option. Believe me they don't MOVE without being bolted down. I drive fast and take corners without slowing down. Haven't lost a dog yet LOL.
I also considered a 4 hole trailer. After watching other trailers being bounced around, I went with the three hole.
I have an F150 with Ecobost and I get 22 mpg on highway and 18.5 in town.
Good Luck but I asked the guys at Mountaintop about a hoist and they were totally against it due to the weight of the unit.