Carlisle RH Trail vs Maxxis M8008 Tires GVWR 10k

We want to replace the OEM tires (225/75/15 "D" load range) on our 2012 Keystone Laredo 275SBH fifth wheel. It's sticker empty weight is 7199, GVWR is 10k. We've never weighed it all stocked up, but...