Yep, don't cheap out. Figure it this way if one of those $80 Pacific Rim tires blows out you will have to replace it with another $80 PR cheap tire and then you are in it for more than the price of one Goodyear MADE IN THE USA Endurance trailer specific tire. Hopefully when the PR cheapo tires blows it doesn't cause damage to the wheel/rim or the trailer and it happens to blow in a safe place and conditions. Then add in the time and money (if you don't have a spare) that it will take to fix the situation on the side of the road. I dragged a 26' foot trailer around the USA for several decades and got tired of the company cheaping out on trailer tires. Installed either Goodyear or Michelin tires and little to no, none, zip issues from there on out. DON'T CHEAP OUT, not worth the initial money saving and will cost you more in downtime and safety.

https://www.tirerack.com/tires/Spec.jsp?tireMake=Goodyear&tireModel=Endurance&isSEO=true (check at the bottom of each listing "Country of Origin USA". If you do ever have a problem then you can't say you didn't do the best you could.