My last set came from Gerald Tires in North Charleston.
Close to work so I brought 3 tires one day, then 2 more the next. Easy drop off and pickup.
They even sent one tire back because it was over a year old and I wanted all manufacturing dates to be the same.
If u buy tires from Charleston trailer they will be a minimum of two years
Old. Check the manufacture dates. They should be discounting their tires by 30% or more given the shelf life of a trailer tire is 6 years
Northern Tool has some good radial trailer tires, they occasionally have them on sale
Pioneer 197SF