Build the ramps beefy. A few of us have had to send buggies with broken front drivetrains, to get them on trailers, and the ramps show it afterwards.
Which kinda brings a thought.... My concern whenever looking into steep ramps or custom buggy trailers, is "Can I load my buggy if I have a major breakage?" Sure you can winch it on, but if there are fenders to go over or steep ramps, it might be a challenge. Maybe a good anchor point on top of the headache rack will solve some of that? Of course, having friends with a regular trailer that can swap buggy places for the ride home is possibly an option?