D100 pull my Duster?

“Very bad”?

So is asking a bunch of strangers on the internet, people with no “skin in the game” and little knowledge of the actual condition of the tow vehicle, for their opinions, any better?

While I didn’t call it out specifically (I guess I didn’t think it would be necessary), I only brought-up the Uhaul example to show there are options out there that don’t involve “doing the math”, as it were, and I seem to recall other car hauler rental companies offering the same service on their respective sites. Uhaul was just the first that popped into my head.
Simple. Do what I did. Look up the towing capacity of your vehicle. That ends the discussion. I did it for him, he can tow 4500 lbs w/trailer brakes. That covers the Duster and an aluminum trailer.