This was our 2016, with no roof A/C going into a 6'11" doorframe. 7' garage doors are rarely more than 6'10" to 6'11" in useable clear height. 9 feet door opening rough, more like 8'10" because of weather strippng found on most doors as well.
The Scamp unit is called a 13' because that is basically its overall length. I'd say no longer than 13'6" max.
To accomplish this, the trailer had flat tires
. (all air removed), the top cap of the Fantastic Fan removed. (easy enough, just 4 screws) and still
.. We had to use the tilt method. Very tedious. Raise the front teeter totters the back. Likewise, once half way in, level and finally, raise the back to lower the front a bit and ta da.
The tractor was used because of the 3 point hitch makes it easy to raise and lower the front hitch.