[JRTJH]

You say you're considering cost as a factor, from the way you posted the issue, it sounds like cost is a substantial factor. So, you can buy Goodyear Endurance (4) for $636 (plus tax, mounting/balancing) or you can buy Sailun's for 564 (plus tax, mounting/balancing and possibly new wheels) or you can buy Carlisle Radial Trail HD's at WalMart for $308 (plus tax, mounting/balancing).

Keep in mind that the Endurance and the Radial Trail HD have the same weight rating at 80PSI. That's 3520 pounds per tire, or 14080 for the four. Either of those tires, the Endurance for $636 or the Carlisle for $308 will give you the same weight capacity, sufficient for your trailer. With the Endurance, you would need to order them from Simple Tire to get that price and have them mounted by a local tire dealer. With the Carlisle, just go to WalMart, order them, take in your wheels and once installed, remount them on your trailer.

Your choice, but at the weights you're dealing with, I wouldn't consider Sailun to be necessary. Maybe an "over the top" add-on, but not a necessity.

So, if cost is something important, I'd consider WalMart and Carlisle. There's $328 difference between the Endurance and the Carlisle, that's more than double the price, and from reports here, no difference in performance or reliability.