Welcome to the forum
First let’s figure out if you have enough truck. Look at the federal label on the drivers door and make note of the GVWR. Then go to a scale with everything in the truck you would have if headed to the campground.
Take that weight and subtract it from the GVWR and that will tell you how much you can CARRY, since how much the salesperson says you can tow is pretty much useless.
Next take the GVWR of the trailer and multiply by 13% to get an estimate of the tongue weight. If it’s less than the “carry” weight your good to go. I almost forgot, add about 100 pounds to the tongue weight for a good weight distribution system.
The trailer: look it over real close, take a real good look at the roof and seals. Tell the seller you want to see everything demonstrated that it works BEFORE signing. There is a PDI checklist on this forum, and you may want to print it out and take it with you. I’m sure others will add, but i hope this gets you started.
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.