http://goldlinq.com.au/workspace/ass...l-4f78aeec.pdf
Two options are listed. Suggest you attach two suitable guard dogs, one to either side of the winch post of the trailer if you are intent on fishing at night from either of these ramps IMHO.
Might be safer to get the boss to take the trailer home and come back when your ready to pull out.?
Cheers
Chimo