When I was in the service I dragged and parked boat trailers all over the place, they were easy, most of the time you could see over the, (mostly skiffs). 24 yrs later when I 1st bought my enclosed construction trailer I needed one of the mechanics at the dealership to maneuver it and my truck out to the front parking lot. A week or so later and a couple dents on the trailer I tooled around without a problem and was way accurate in CQ parking within a month.
Never bite the hand that looks dirty!
The more you know the more you're worth