The Nissan is marketed as a comfortable off road vehicle. It is also a body on frame design with a 109 inch wheelbase.
Generally, the lower the CG and the longer the wheelbase, the safer the vehicle is for towing. Most trucks are 120-140 inches. You have a tall vehicle with a short wheelbase. As stated above it is rated for 5000lbs towing capacity, but no tongue weight specification was included in the search result. A 10%, which is minimal for tow stability, is 500lbs and likely. All elements point to a less than optimum tow vehicle, except for a small coach and limited travel speeds.
The frame design will allow a strong hitch to be installed. However, some frames twist under load, which may or may not be a good thing. The location of the spare tire may make this difficult. Check it out.
An off road vehicle is assumed to be rugged. It may also transfer more shock than necessary to the coach. The riveted design of an Airstream is better served with a smooth ride. That can be achieved with different rig setups, but a slower speed helps considerably.
You need to research quite a bit. There is a lot to learn about tow vehicles and trailers. Suggest you spend some time digging into the threads under this subject category. There is lots of controversy, but good info as well. Figure out what your tow vehicle can tow, and why. Figure out what compromise, modification, or change will best serve your RV goals.
Many folks just move on up to a 3/4 ton truck. Others find that a properly set up mini van works for them. Vintage coaches were towed with passenger cars. Some will never tow with a vehicle that does not have 20% or more headroom in the specification for tow and tongue capacity. Others heavily modify hitch attachment to improve capacity and use the force projection design weight transfer hitches to eliminate sway for white knuckle free travel.
Learn what works for you.
Also, spend some time with different Airstream coaches and see what works for you. Some folks like it small. Others need something more. The most expensive thing you can do is purchase the wrong coach and trade later, unless you are an effective DIY person, buy used, and can flip your way to perfection.
So research, research, research ..... and welcome to the forum.
Pat