Have a 21SPX with Toyota Sequoia tow vehicle. Measured lengths of 25' from prop to hitch, and 18' of Sequoia. Newly shortened distance of 50 feet from fence to storage unit door, leaving 7' extra. Expert opinions: can this be backed into the storage unit, or am I wasting time trying? I can drive it out in one motion, but have been unskilled enough to put it back w/o unhitching and pushing by hand. Thanks!