I would not be afraid to tow a light pop up with my TJ, however, I have not yet towed with my TJ. I tow a similar popup with my WJ, without problems. However, tow ratings for ZJs, WJs are a lot higher than TJs.
One comment above says be safe, buy a tow vehicle? Ok, how does that solve the problem? Tandem tow the TJ and the trailer? Drive 2 vehicles? One comment says install an electric brake controller, but many of these cheapo trailers dont have e-brakes. Mine doesnt, but I would use a controller if it did. Vanco brakes would be deluxe, but that is very expensive upgrade to a dana 30 axle. That's a tough choice between the added braking power and putting lipstick on an axle you will want to replace eventually.
The 4:56 ratio with 35's is going to tend to bog down climbing up the passes. With that axle ratio, you might want to stay with 33's, especially if you are going to tow.
You dont have an automatic, but if you did: a tranny cooler is a must for towing over the passes in Colorado. I will be installing a tranny cooler this spring.
The main problem you will have is keeping things from overheating climbing passes or bucking headwinds. Plan on taking your time, figure speed limit of 55 everywhere, stop often to cool things off.
Hotels are not that expensive, cheaper than major repairs or a wreck. What I am going to do: Use my trailer when we travel in our WJ, and stay in hotels when we travel in the TJ. YMMV.