We will note from a previous discussion; that the Cdn U-haul tow dolly's have surge brakes - they are next to impossible to back up.
What I might do, and what I recommend doing in this forum are completely different.
I have 10s of 1k of km towing trailers (Ottawa to Regina, 3-4 times a year for a decade with S10, then Ranger; Calgary to Houston and back, on top of lots of short hauls). So, I won't be asking on this forum if what I am doing is nuts or not - I already know.
So, I'm assuming if the individual is asking, it's because they don't have that level of experience. And I provide recommendations that are safe for individual with limited experience.
May be its conservative, but its within legal limits.
I don't want someone sueing Jim, because someone on the forum recommended something illegal.