If you need just two fronts, get the best there is. Michelin XPS, they are more expensive than the cheap tires, but will last you 2x longer. These are just about the only tires still made with steel casing and can be recapped if you wear them out. These are my favorite tires. We always put them on the front on all of our commercial ISUZU trucks 15K GVWR. Mixing is not an issue, but always use the same tires on both wheels. As you wear your rears, put the fronts on the back and get the fresh new ones on the front.I am also looking to replace tires on my 2014 ERA. The OEMs are junk. We have 3 Sprinter and max you get out of them is maybe 30K. We just put new tires on two of our cargo Sprinters and we used Michelin LTX M/S 2. Also great tires, but these are 2500s', lighter trucks and never loaded to max capacity, unlike your RV 11K GVWR. Check their rebate, they are running something now.