If it ain't broke don't fix it.In my experience the biggest problem here is the ".gov" at the end. The government procedure with any equipment or systems is "Keep Fixing It Until it is Broken. Will not say what I did prior to retiring however was qui...
I also found a good selection of radial whitewall tires and should be able to find them with the proper load rating for the trailer.https://www.lucasclassictires.com/RADIAL-White-Wall-Tires_c3.htm
I do have wide whitewalls and surprising enough it came with Bias Ply tires that remind me of when I started as an auto tech in the 60'S. Have had no problems with them. I believe they are made by Corker.
I have a Riverside Retro 2017 Model 199FKS that is great. Was 25K before trade in and indeed draws attention in the CG. At the time was the only one with a slide. Is listed as a 21 foot but overall is 25 feet.
