Seen someone do this
They had a two-axle trailer, I don't know how long, but longer than the RT was. They unhooked the trailer from the hitch, tilted the trailer, and drove up the trailer. The trailer did have a short ramp that made the pitch too steep for the RT. He used tire blocks to keep the trailer from rolling once the trailer flattened out. I did not see him unload the RT, but he said it works good, just like loading it. I told him he was a braver man than I was, but for him it worked.
They had a two-axle trailer, I don't know how long, but longer than the RT was. They unhooked the trailer from the hitch, tilted the trailer, and drove up the trailer. The trailer did have a short ramp that made the pitch too steep for the RT. He used tire blocks to keep the trailer from rolling once the trailer flattened out. I did not see him unload the RT, but he said it works good, just like loading it. I told him he was a braver man than I was, but for him it worked.