Towing with 4cyl Sorento?

It is a very old, 1994 I believe, Palomino Colt. The ice chest isn't in it anymore. It doesn't have any added options aside from an awning (no AC, no heater, etc).
We dry camp and won't bother filling the water tank. (We usually tent, we wanted to try the pop up as a small 'upgrade'). I can't see how the awning would add too much weight.
It has standard 4 pin electric harness plug. I didn't realize I also need a battery? I apologize, I am brand new to all this, hence the post here.
So we could do all gear/people in one car, and then the Sorento just to tow.

You will be close to your limits. The weight of the pup dosent include anything like propane tank, battery ( needed for the breakes) water , awning, etc. All this stuff adds weight to the pop up. This is addition to any gear added. What pup do you have and what options?

Thank you so much!
It would be 4 people plus gear, but we are pretty much 99% certain taking a second car for passengers and gear, and just using the Sorento for towing empty PU.
Thank you for the brake controller tip - will be researching that today!

Should be fine! Keep an eye on your temps and downshift manually for engine braking going downhill. The PU should have brakes since you need them over 1000 lbs in NY. Get a good brake controller like the Prodigy. You don't say how many passengers but if you have full seats and gear in the back, steep grades will be a challenge.

Post up when you get back and let us know how the trip went!

Best of luck with your plan.