Steve, I have Kenda Karriers in an E range on my trailer. Just put them on last January. Unfortunately I haven't had the opportunity to test them as work keeps getting in the way. I bought mine here
ST205/75R14 LRD 8 PR Kenda Karrier Radial Trailer Tire and they have your tire for $81. If you want to stick with E-trailer maybe they'll price match. Shipping was fast.