My first post - I'm new to trailers and need some input

You will NOT enjoy pulling a hard sided trailer with your minivan unless it is something ultra light like a fiberglass 'egg' or a no slide 14' unit. I've been there, done that, as has a former coworker. He did it for 2 years locally (within about 100 relatively flat miles from home), I noped out after towing the trailer in my signature home. In theory the numbers work, in reality the soft rear suspension makes for an absolutely terrible towing experience.