Will a 3023 fit in my garage?

I am considering buying a 2007 3023. I will be towing it with a 2003 Toyota Sequoia, V8.

My garage is 21 feet, 1 1/2 inches deep. According to the Trailmanor website the "tow length" of the 3023 is 22 feet, 9 inches. With the 2 foot swing hitch, a 3023 should be 20 feet, 9 inches long.

Does anyone know if the "tow length" provided by the factory is accurate? In other words, are the bumper and lights, etc., included in the factory "tow length" specification?

Thank you for any information you can provide. This site is awesome!