That contraption looks dangerous. I slipped off the tongue of my trailer last year while holding the bow of my boat, and got a nasty bruise because my shoes were wet. Getting caught between those steps while falling could result in big trouble. If I get where I cannot get into the boat safely I will sell it and just dock or bank fish. A safe way to launch and board is to go where there is a courtesy dock, back the boat in, use a rope to control it to the dock and board from there after you put on the life vest. If you cannot launch it without backing off under power, your boat is too big for you.